Title: Climate Change
1Climate Change
- What you dont know Can
- Hurt You
2A Climate Change Reality Check
- One Persons Review of the State of Climatic
Science, Specifically Anthropogenic (Human
Produced) Greenhouse Gases versus Natural
Climatic Variations
3I. Introduction
- The basis of this review is to ascertain if the
evidence for anthropogenic climatic warming
withstands scrutiny using the principles of the
Scientific Method.
4A Quick Review of The Scientific Method
- The scientific method is the process by which
scientists, collectively and over time, endeavor
to construct an accurate (that is, reliable,
consistent and non-arbitrary) representation of
the world. - Recognizing that personal and cultural beliefs
influence both our perceptions and our
interpretations of natural phenomena, we aim
through the use of standard procedures and
criteria to minimize those influences when
developing a theory. - As a famous scientist once said, "Smart people
(like smart lawyers) can come up with very good
explanations for mistaken points of view." In
summary, the scientific method attempts to
minimize the influence of bias or prejudice in
the experimenter when testing a hypothesis or a
theory.
5The Scientific Method has four steps
- 1. OBSERVATION and DESCRIPTION of a phenomenon or
group of phenomena. - 2. FORMULATION of a HYPOTHESIS to explain the
phenomena. In physics and in climatic science,
the hypothesis often takes the form of a causal
mechanism or a mathematical relation. - 3. USE of the HYPOTHESIS to PREDICT the existence
of other phenomena, or to predict quantitatively
the results of new observations. - 4. Performance of experimental TESTS of the
PREDICTIONS by several independent experimenters
and properly performed experiments. - If the experiments bear out the hypothesis it may
come to be regarded as a theory or law of nature.
If the experiments do not bear out the
hypothesis, it must be rejected or modified. What
is key in the description of the scientific
method just given is the predictive power (the
ability to get more out of the theory than you
put in) of the hypothesis or theory, as tested by
experiment. It is often said in science that
theories can never be proved, only disproved.
There is always the possibility that a new
observation or a new experiment will conflict
with a long-standing theory. (Wilson, E. Bright.
An Introduction to Scientific Research,
McGraw-Hill, 1952).
6Example of The Scientific Method
- Einsteins General Theory of Relativity
- In 1905, while working at a Swiss Patent office
Albert Einstein published four papers which would
comprise the basis of the General Theory of
Relativity, which he published in 1916. At first
his papers were either ignored or heavily
criticized as the established world of physicists
were very skeptical of his theories. But his
theories were tested, and proved to be correct. - The first major test was in 1919. His theory
predicted that large gravitation bodies can
deflect light. Astronomers made observations and
found that sure enough during the 1919 solar
eclipse, they could accurately measure the
deflection of star light by the sun. - Einsteins theories are still being tested to
this day, NASA currently has several satellites
(GRACE, LAGEOS, and in the future LISA) in orbit
testing gravitation effects as predicted by
Einstein to a much finer degree than has
previously been possible. - Proper testing of the hypothesis of anthropogenic
climatic warming must be done in a similar
fashion, and examine its predictions against
actual data.
7II. Radiative Balance of the Planet
- The earth is warmed by infrared radiation that is
absorbed from the sun (about 235 w/m2). - The infrared radiation is transmitted through the
atmosphere and absorbed by the earths surface by
varying amounts, due the varied nature of the
surface (ocean, snow pack, ice, soil, rocks,
varied vegetation, human structures, etc.). - Some of the infrared radiation that is not
absorbed is reflected back into the atmosphere
which eventually transmits it back into space. - The balance of infrared radiation absorbed and
infrared radiation reflected and transmitted into
space allows the earths surface to stay at the
relatively narrow range of temperatures. - This balance is controlled by the earths
atmosphere, through its circulation systems and
precipitation systems.
8Radiative Balance (Spencer, Roy F. web site)
9Weather and Precipitation Systems
- The earths atmosphere is a complex circulation
system,controlled by the 2nd Law of
Thermodynamics which states that any system will
try to come to an equilibrium. - In the case of the atmosphere that means that
because of the vastly different temperatures and
pressures of the atmosphere from surface
(troposphere) to outer edges of the atmosphere
(ionosphere) the atmosphere is constantly trying
to balance the heating and cooling extremes that
the addition of solar radiation on the atmosphere
creates. - Thus weather systems constantly move warm and
cold air around in the atmosphere, with the
associated precipitation and condensation of
water vapor. The result is cold and warm weather
fronts, low and high pressure systems, and rain,
snow, wind and all the types of weather systems. - The most important of these is the effect of
precipitation systems. The process of
evaporating water and then condensing and
precipitating water moves heat up and down in the
atmosphere.
10How Precipitation Systems Move Heat - Part I
- The difference in temperature from one region to
the next causes air currents (wind) to blow
across the surface of the earth, picking up heat
from the surface and moving it to somewhere else. - The heat transferred to the surface from the
overlying air is either sensible (an increase in
air temperature), or latent (water evaporated
from the surface, adding water vapor to the air
which contains the latent heat of vaporization). - Latent heat loss by the Earths surface through
evaporation is the dominant method of cooling it.
You feel this effect when a breeze blows over
your skin. The breeze is taking heat from your
body as the water on its surface evaporates into
water vapor and is removed from your body. - At least 90 percent of the heat lost by water
bodies (streams, lakes, oceans) is through energy
required to evaporate water from surface. For
land surface plants evaporate water through
evapotranspiration. That is why forests feel
cooler the heat of vaporization is being
removed from them.
11How Precipitation Systems Move Heat - Part II
- As air accumulates water vapor and latent heat it
tends to rise. As the warm air rises it reaches
levels of the atmosphere that are too cool to
keep all the water vapor in vapor form. Now at
100 percent humidity some water vapor condenses
releasing the latent heat and warming the upper
parts of the atmosphere. This warming from
condensational heating then causes the cloudy air
parcels to continue to rise and condense more
water vapor. This is how clouds and ultimately
thunderstorms are formed. - If precipitation reaches the surface it
represents solar energy that has been transferred
from the surface to the upper atmosphere. - These columns of warm air force the dryer air
around them to sink to fill the gaps left by the
rising warmer air. This air as it is being
forced downward warms the upper troposphere by
emitting infrared radiation some of which is
transmitted to outer space.
12The Effect of Weather on Radiative Balance
- If there were no precipitation and circulation
systems and the transmitting effect of weather on
heat and cold in the atmosphere the temperature
on the surface of the earth would be about 140 F
(based on a radiative heat model - Spencer, Roy
F., 2008). The temperature would rapidly
decrease with altitude and as low as 30,000 feet
the temperature would be so cold that jet fuel
would freeze or turn into a gel and make jet
aviation impossible without more insulation and
heating in fuel tanks. - Therefore precipitation systems on earth have the
effect of being the earths air conditioning
system, cooling the surface and transmitting the
heat up and throughout the atmosphere. (Spencer,
Roy F., 2008)
13Present Day Composition of the Atmosphere
- The atmosphere is made of a number of gases
primarily nitrogen (76.55), oxygen (20.54),
water vapor (1.96), and argon (0.91). Other
gases include carbon dioxide (0.03) and the rest
of the atmosphere (0.1) is composed of methane,
nitrous oxide, sulfur dioxide, helium, and other
noble gases and trace gases. This is the current
percentage of gases in the atmosphere.
14Past Composition of the Atmosphere
- However current gas percentages have in no way
been constant over geologic time, and have varied
considerably. For instance geologic studies have
indicated oxygen may have been as low as 15
percent and as high as 30 percent of the
atmosphere in the last 550 million years
15Greenhouse Gases
- The gases that primarily control the balance of
infrared radiation absorbed and reflected are the
greenhouse gases. - A greenhouse gas is defined as a gas that
strongly absorbs and emits infrared radiation.
The dominant greenhouse gases in the atmosphere
are water vapor, carbon dioxide, and methane. - These and some of the minor other gases act as
radiative blanket, causing the lower atmosphere
to be warmer, and the upper atmosphere cooler.
They do this by trapping more of the infrared
energy that would be dissipated into outer space.
Of these three, water vapor is by far the most
important, causing over 95 percent of radiative
absorbing or transmitting.
16Carbon Dioxide Stability
- From studies of the geologic record and
associated indications of the composition of
ancient atmospheres (in many cases by isotope
studies and proxy measurements) , it has been
determined the concentration of carbon dioxide
has not been stable, but has also varied over
geologic time.
17CO2 in Geologic Time Howard, J.F. TPG 6/08
18Additional CO2 Studies
19The hypothesis of anthropogenic global warming is
based on the following concepts
- Human activities have added carbon dioxide in the
atmosphere by the use of carbon based fuels (oil,
gas, wood, etc.). - The amount of carbon dioxide in the atmosphere is
steadily increasing due to human use of carbon
fuels. - The increase of carbon dioxide has caused a shift
in the radiative balance of the earths
atmosphere, resulting in an increase in the
infrared energy retained by the atmosphere. - This retention of infrared radiation will be
expressed by an increase in temperature in the
lower and upper troposphere of the atmosphere, a
general increase in atmospheric global
temperatures, and by an associated increase in
ocean temperatures globally due to natural
circulation and equilibrium between the
atmosphere and the ocean. - The described increases in global temperatures,
lower and upper troposphere temperatures, and
ocean temperature will be expressed by changing
conditions on the surface of the planet such as
warmer average temperatures per latitude,
shrinking ice packs such as continental and
alpine glaciers, and resulting rises in sea
level. (Spencer, Roy F., 2008)
20Computer Models of Earths Climate
- Computer simulations of climate using
mathematical representation of different aspects
or parameters of the atmosphere are used to
attempt to forecast long-term trends of the
worlds climatic system. These models are very
speculative in that the complexitiy of climatic
systems do not allow accurate representation of
most parameters. In most models several
parameters, often cloud cover or solar radiation
have to be given a constant value because of time
and limitations of the computing power of the
multiple processors used by the modelers. Each
climate model can thus be very different as the
modeler chooses which parameters to vary and the
limits of the variation.
21Climate Models Complexity
22Key Assumptions for most Climate Models
- Solar irradiance on the earth remains within a
narrow range and can be considered a constant
over time. - The historical record of concentrations of carbon
dioxide in the atmosphere is best found in ice
core data. - The primary greenhouse gases are water vapor,
carbon dioxide, and methane. The global
temperatures will reflect increases of carbon
dioxide and methane. - Although water vapor is the primary greenhouse
gas (95 percent of the greenhouse effect is by
water vapor), its effects can be considered
relatively constant except in its relationship to
carbon dioxide and methane. - The effect of carbon dioxide alone on atmospheric
warming is limited in that its ability to trap
infrared radiation significantly decreases with
concentration. Due to this property the doubling
of carbon dioxide concentration alone will result
in an increase of 1 degree Celcius in global
temperature at most, assuming a completely static
atmospheric model. - The effect of carbon dioxide is amplified by
feedback mechanisms which cause other gases
(particularly water vapor) to increase and thus
increase the warming effect. - Ocean temperatures will change over time as the
increase in heat in the atmosphere will be
transmitted to the ocean.
23Key Suppositions from most Climate Models
- With increase in carbon dioxide, the temperature
in the atmosphere will increase with altitude
from the surface in the troposphere to an
altitude of about 9 to 12 kilometers, and then
decrease with the thinning of the atmosphere.
This is the key mechanism of the hypothesis of
anthropogenic global warming that causes the
enhanced warming of the atmosphere. Increase in
carbon dioxide causes the mid and upper level of
the troposphere to heat up, transferring heat to
the surface instead of being radiated out into
space. - With increase in carbon dioxide the temperature
of the oceans should also increase. This
temperature increase is significant because the
oceans hold much more mass then the atmosphere
and thus can hold much more energy for feedback
mechanisms (resulting in higher sea levels and
more storms hurricanes it is speculated). - With increase in carbon dioxide a positive
feedback is predicted to occur with water vapor
resulting in the increase of water vapor in the
atmosphere and corresponding increase in
temperature. Some modelers have stated that as
the climate temperature increases the amount of
this feedback could result in approaching a
tipping point leading to catastrophic increase in
atmospheric temperature.
24Climate Model Parameters
- These assumptions and suppositions are key in the
modelers climatic predictions that anthropogenic
increases in carbon dioxide will result in human
induced climate change (global warming) leading
to increases in global increases in temperature
with resultant glacial and ice cap melting,
increased and severity of atmospheric
disturbances (storms), sea level increases, fauna
and flora stress and even possibly catastrophic
effects on the climatic system. - Each one of these assumptions and suppositions
must withstand scientific method scrutiny in
order for the hypothesis of anthropogenic warming
to be considered valid, as with any hypothesis.
25Assumptions The Role of Solar Radiation
- Assumption Solar Radiation varies over a narrow
range and can be considered a constant over time. - Astrophysicists tell us that sun irradiance
varies according to distinctive cycles which are
only poorly understood. The most frequent cycle
is the 11-year sun spot cycle. This cycle has
been tracked since the 1700s and is now between
cycle Number 23 and Number 24. The chart on the
next slide depicts this periodicity.
26Solar Sunspot Cycle
27Assumptions The Role of Solar Radiation
- As can be seen from the previous chart solar
radiation on the earth has been on upward trend
the last two centuries. According to the
Max-Planck Institute for Solar Studies the level
of solar activity during the past 70 years is
exceptional, and the previous period of equally
high activity occurred more than 8,000 years
agoduring the past 11,400 year Sun spent only of
the order of 10 of the time at a similarly high
level of magnetic activity and almost all were
shorter than the present episode. Solanki, S.K.
et.al. , Nature 10/28/04. - The next three charts show additional
periodicities with sunspot and solar activity.
Note the presence of the Maunder minimum between
1600 and 1700 and its relation with global
temperatures and finally a summary of the past
3,000 years in global temperatures.
28Additional Solar Cycles
29Cyclical warm periods that match solar activity
(Stephen Wilde, 2008).
30Summation of Global Temperature last 3,000 years
From Robinson, A.B., et.al., Jrnl of American Phy
Surgeons, 2007.
31Assumptions The Role of Solar Radiation
- The next slide shows how temperature has varied
over the last 100 years as compared to the
changing length of the sun spot cycle. - The following two slides then overlay other
regions temperatures and corresponding and solar
radiation.
32Comparison of Solar Activity and Global
Temperature
Close correlation between surface land air
temperature in the Northern Hemisphere (thick
curve) and the changing length of the 11-year
sunspot cycle (thin curve), indicating the
varying intensity of the sun's eruptional
activity (From Friis-Christensen and Lassen,
1991). Data taken from Landscheidt, Theodore,
2002, Figure 4.
33Comparison of Solar Activity and Global Temp in
Arctic
From Robinson, A.B., et.al., Jrnl of American Phy
Surgeons, 2007.
34Solar vs Temp Other Regions (from Soon, 2009)
35Summation Solar Activity
- Sun spot activity and thus solar activity has
been historically recorded by observation for
1400 years. These observations have been
confirmed by isotope studies. - The historical tracking of sun spots and global
temperature have determined there is a strong
correlation between them, although the mechanism
is not entirely clear because the change in solar
radiation is not sufficient to cause the degree
in temperature change directly (using the
radiative model method). - One current theory is that with decreased solar
activity, the decrease in solar wind allows more
cosmic rays from outside the solar system to
penetrate the atmosphere, ionize nitrogen
oxygen atoms and provide more nucleating site for
cloud droplets, increasing cloud cover and
reducing global temperatures. Thus an indirect
feedback mechanism. - Recent measurements have determined the last
three decades of sun activity has been
exceptional, with the most sun spot and thus
solar activity in the past 8,000 to 11,400 years
(Solanski, S.K., et.al, Nature, 2004). - The increase and decrease in global temperature
this past century correlates strongly with this
change in solar activity. - The recent drop in global temperature also
corresponds to the current quiescent state of the
sun, as it switches over from sun spot cycle 23
to 24. - Because of these facts, Climate models that
assume the solar irradiance is a constant are
seriously flawed and probably invalid.
36Examination of Assumptions
- Assumption Ice core data is the best
measurement of carbon dioxide concentrations in
the atmosphere. - The IPCC and global climate modelers use ice core
data and the amount of carbon dioxide trapped in
gas bubbles in the ice core to measure the
concentrations of carbon dioxide in the
atmosphere. This has been the standard practice
of climatologists for the past several decades.
From ice core data it is assumed the pre
industrial Holocene era (8,000 to 10,000 years
ago) show a carbon dioxide level of about 240
ppmv (ppm by volume). - Modern carbon dioxide measurements are compared
to the Mauna Loa observatory, which has been
measuring carbon dioxide meticulously since 1958.
The steady increase of carbon dioxide is assumed
to be due to the use of carbon based fuel.
37Mauna Loa Observatory Data
38Evaluation of Carbon Dioxide Ice Core Data
- Reliance on ice core data ignores 90,000 accurate
chemical analysis of carbon dioxide in air made
since 1812 using reliable chemical methods that
usually achieved accuracy better than 3 percent.
This data, when compiled, indicates carbon
dioxide has had three maxima in the last 200
years around 1825, 1857, and 1942 with the later
over 400 ppm (Beck, 2007). This data was not
taken from specific station points for the
purpose of examining carbon dioxide levels over
extended periods, but collected as part
scientific studies or measurements for other
purposes. But, when carefully evaluated, there
is no reason to assume this data is not useful as
a historical carbon dioxide record. - Evaluation of gases in ice core data indicate
they are not a reliable record of carbon dioxide
as the carbon dioxide tends to differentiate and
diffuse in cold liquid water and diffuses by the
Knudsen diffusion effect at drastic pressure
changes such as experienced by deep ice cores
which minimizes variations and reduces maximums
(Hurd, 2006). - Comparison of ice core data with proxy estimates
of carbon dioxide (such as fossil leaf stomata
indices) indicate ice core data consistently
undervalues carbon dioxide concentrations by at
miminum 100 to 200 ppm (Jaworowski, Zbigniew,
Science, 2007).
39Carbon Dioxide Chemical Methods from Beck 2004
40Carbon Dioxide Chemical Methods from Beck 2004
41Summation Ice Core Data
- Climate models assume the preindustrial carbon
dioxide levels were around 240 to 260 ppmv, based
on ice core data. They also assume that the
latest Mauna Loa station data indicates that
carbon dioxide has increased steadily to maximum
values for the past 100 years. - Ice core data has been demonstrated to be
unreliable and the Mauna Loa data ignores prior
data collected before the station initiation that
found carbon dioxide levels above 400 ppm this
century. - Therefore the basic assumptions of the climate
models regarding current and past carbon dioxide
level that are based on ice core data are
demonstratably underestimated and therefore
suspect and probably invalid. Values of
historical carbon dioxide levels require further
independent verification by other proxy
measurements or direct measurements if they can
be developed.
42Carbon Dioxide Increases and Global Temperatures
the past 200 years
- Assumption The primary greenhouse gases are
water vapor, carbon dioxide, and methane. The
global temperatures will reflect increases of
carbon dioxide and methane. - The climate models and most proponents of global
warming postulate that the dramatic increase in
the use of fossil fuels as part of the industrial
revolution (particularly after the 1850s) have
caused the amount of carbon dioxide to steadily
increase. This increase will be reflected in
global temperatures because of increases in
greenhouse gases and the resultant affect on the
radiative balance of the planet.
43Temperature Trends Last 150 years
From Robinson, A.B., et.al., Jrnl of American Phy
Surgeons, 2007.
44Comparison of Carbon Based Fuel Use and Global
Temperatures
- 1. Comparison with use of carbon based fuel and
global temperatures have found contradictory
correlations for the past 150 years. - 2. Increase in global temperature from the 1910
to 1940 compared to flat or small increase in
carbon based fuels, and correlation was negative
between 1940 to the late 1970s. Only positive
correlation was after 1980s. - Sea level rise and glacier shortening demonstrate
no correlation. - Solar activity actually correlates more closely.
Robinson, A.R., et. Al., 2007.
45Up to Date Temperature Trends
46Temperature Trends last 10 years
47The Relationship of Carbon Dioxide and
Temperature over Geologic Time
- Ice core data such as the Vostok ice cores have
found that during the fluctuations of temperature
that have occurred in the last 400,000 years,
carbon dioxide values have increased and
decreases in response to temperature changes, and
have not been a driver of temperature changes. - Usually the maximum carbon dioxide concentration
will follow a peak in temperature by about 400 to
800 years. - The explanation for this is probably the oceans
and other water bodies that contain carbon
dioxide are outgasing this molecule as they warm,
like a can of soda outgases its carbonation as it
sits.
48Vostok Ice Core Data
49Summation Carbon Fuel use and Temperature
Correlation
- A positive global temperature correlation with
increase in fossil fuel use is observable only in
last 20 years of last century. - Comparison with beginning or middle part of
century flat or negative. - Solar activity actually is a better fit for
global temperature correlation.
50Temp vs CO2 using Mauna Loa Data
51Examination of Water Vapor Constant Assumption
- Most climate models assume that as carbon dioxide
is increased the temperature of the atmosphere
will increase which will increase the evaporation
of water adding more water vapor. As water vapor
is a greenhouse gas this would amplify the
greenhouse effect. - However this is gross simplification of a much
more complex system. The concentration of water
vapor in the atmosphere is not controlled by
surface evaporation, but by precipitation
systems, as described previously. Even though
surface evaporation tries to fill the atmosphere
with water vapor, precipitation systems do not
allow that to happen and disperse the water vapor
and its heating/cooling effects. Relative
humidity's near the surface average no more than
70 percent. - It is possible all that will occur if you add
more carbon dioxide is an increase in the
efficiency of the worlds precipitation systems
ability to circulate and remove water vapor from
the atmosphere, and thus no increase in global
temperatures. - Therefore the assumption that an increase in
carbon dioxide will result in an increase in
water vapor is speculation that has no real
scientific basis.
52Comparison of Climate Model Assumptions with
Actual Physical Measurements
- A number of instruments have been introduced in
the last 25 years (such as satellites and
balloons) which have measured some of the
atmospheric parameters that climate models
predict with increase in carbon dioxide. - One such parameter is the temperature of the
lower and upper troposphere. Climate models
projecting increases in global temperatures
because of anthropogenic increases in carbon
dioxide all project significant increases in the
temperatures of the troposphere from the 7 to 13
kilometer range. - Actual measurements of global temperatures in the
lower troposphere do not match the predicted
ranges. - The models predictions of lower troposphere
temperatures are therefore are to be considered
either suspect or invalid.
53Comparison of Actual Satellite Temperature
Measurements with Climate Models Predictions
Douglas, D.H., et. al, International Journal of
Climatology, 2007
54Comparison of Actual Satellite Temperature
Measurements with Climate Models Predictions
- Temperature trends for the satellite era
(C/decade). Relax it is simple. HadCRUT, GHCN
and GISS are various compilations of surface
temperature observations. IGRA, RATPAC, HadAT2,
and RAOBCORE are all balloon-based observations
of the surface and lower troposphere. UAH, RSS,
UMD are satellite-based data for various levels
of the atmosphere. The 22-model average comes
from an ensemble of 22 model simulations from the
most widely used models from throughout the
world. The light red lines are the 2 and -2
standard errors of the mean from the 22 models
(from Douglass et al., 2007).
55Comparison of Model Output with Actual
Measurements
56Comparison of Aqua Satellite Measurements with
Climate Models Predictions
- Feedback measurements are at the crux of the
global warming debate. Some of the major
feedback mechanisms that climate models predict
is increase in water vapor with increase in
carbon dioxide. - Potential feedback mechanisms are being directly
measured by the NASA Aqua satellite, which was
designed and launched by NASA to measure climate
parameters such as water vapor variations. Aqua
satellite has been collecting data since 2002. - The latest data from Aqua determined water vapor
does not increase in concentration with increases
in carbon dioxide. (Spencer, R.F. et. al.,
2007).
57Comparison of NASA Aqua Satellite Measurements
with Climate Models Predictions
- As stated on March 17, 2008 by Jennifer Marohasy,
a biologist and senior fellow of Melbourne-based
think tank the Institute of Public Affairs on ABC
Radio National What all the climate models
suggest is that, when you've got warming from
additional carbon dioxide, this will result in
increased water vapour, so you're going to get a
positive feedback. That's what the models have
been indicating. What this great data from the
NASA Aqua satellite ... (is) actually showing is
just the opposite, that with a little bit of
warming, weather processes are compensating, so
they're actually limiting the greenhouse effect
and you're getting a negative rather than a
positive feedback." - As explained in testimony before Congress on
March 13, 2007 Dr. Spencer stated, As rain
system activity and tropospheric warmth reach
peak levels during tropical intraseasonal
oscillations (ISOs), we measured an increase in
outgoing infrared radiationwhich was traced to a
decrease in cirrus cloudiness. - Increase in outgoing infrared radiation means the
radiative balance of the planet will cool, not
warm as purported by climate models predicting
human induced anthropogenic global warming.
58Argus Project and Ocean Temperatures
- The Argus Project is a series of 3000 or more
buoys that have been launched throughout the
oceans to measure temperatures. They have the
ability to dive several thousand feet in depth to
check temperatures in the deep ocean as well as
the surface. - Researchers found that the average temperature of
the upper ocean rose by 0.16 degrees Fahrenheit
from 1993 to 2003, and then fell 0.055 degrees
Fahrenheit from 2003 to 2005. The recent decrease
is a dip equal to about one-fifth of the heat
gained by the ocean between 1955 and 2003. They
analyzed data from a broad array of ocean
moorings, floats and shipboard sensors, and
supported their results with data from NASA's
Jason and Topex/Poseidon satellites.
59Argus Project and Ocean Temperatures
- Monitoring the heat content of the oceans is
vital to understanding how Earth's energy balance
is changing. "The capacity of Earth's oceans to
store the sun's energy is more than 1,000 times
that of Earth's atmosphere," Lyman said. "It's
important to measure upper ocean temperature,
since 84 percent of the heat absorbed by Earth
since the mid-1950s has gone toward warming the
ocean. Measuring ocean temperature is really
measuring the progress of global warming." The
NOAA Pacific Marine Environmental Laboratory is
currently developing an ocean observing system to
better quantify changes in the ocean to include
heat content. - The recent changes in ocean temperature run deep.
A small amount of cooling was detected at the
ocean's surface, consistent with global
measurements of sea-surface temperature. The
maximum amount of cooling was seen at a depth of
about 1,300 feet, but substantial cooling was
still observed at 2,500 feet and the cooling
appears to extend deeper. - Lyman said the cause of the recent cooling is not
yet clear. Research suggests it may be due to a
net loss of heat from the Earth. "Further work
will be necessary to solve this cooling mystery,"
he said.
60Ocean Temperatures
- The Argus data is consistent with the finding
that the dodecal Pacific Oscillation in the ocean
has changed bringing cold waters to the surface
in the northern and middle Pacific. - However it directly contradicts the predictions
of most climate models that purport anthropogenic
global warming in that those models predict ocean
temperatures will rise.
61ENSO Variations
- El Niño/Southern Oscillation (ENSO) in the
Pacific is the most important coupled
ocean-atmosphere phenomenon to cause global
climate variability on interannual time scales. - The following graph show its variation from
average since the 1940s. - It shows a trend of lower than average
temperatures from the 1940s to the mid 1970s,
followed by a higher than average trend from the
mid 1970s to 2005. - This correlates with the general trend of global
temperatures, indicating ENSO is an important
natural phenomena affecting global temperatures.
62ENSO Chart
From Wolter and Timlin, NOAA, 1993, 1998
63PDO Chart
- Pacific Dodecal Oscillation has turned cool this
past year, indicating cooler temperatures the
next coming years, if the cycle acts as before. - PDO graph showing its average temperatures per
year is next slide.
64PDO Graph
Climate Skeptic August 13, 2008
65Arctic Temp vs PDO AMO
66Comparing Sun vs Temp vs PDOAMO
67Summation
- The hypothesis of anthropogenic global warming Is
based on assuming the increase of carbon dioxide
in the atmosphere this past century is due to use
of carbon based fuels by humans. - The hypothesis postulates that increases in
carbon dioxide in the atmosphere is modifying the
radiative balance of the atmosphere so that more
infrared radiation is trapped and increasing
global temperatures. Climatic models are used to
explain the mechanism of this phenomena. - However this hypothesis has not matched observed
atmospheric data in the following ways
68Invalidations Temperature
- Proxy data and ice core data has shown carbon
dioxide has varied by large concentrations over
geologic time and has been much higher than the
current 350 ppmv. - The suppositions of the range of normal
atmospheric range of carbon dioxide in the
atmosphere since the Holocene is probably flawed
due to the limitations of Ice cores to retain
carbon dioxide and thus the concentrations are
undervalued. Actual measurements by highly
accurate chemical methods of carbon dioxide this
past two centuries do not match ice core values.
- The geologic record indicates that increases in
carbon dioxide have followed temperature
increases in the atmosphere and not caused them. - Global temperatures increased from the 1900s to
the 1940s, then decreased from the 1940s to the
1970s, which does not correlate with the supposed
human used carbon based fuel carbon dioxide
driver phenomena. - In the last ten years global temperatures have
been flat, which also does not correlate with
observed increase in carbon dioxide.
69Invalidations Models
- Solar irradiance has not been a constant this
past century and has in fact been the highest
observed in the last 8,000 to 11,400 years,
directly contradicting important assumptions of
the computer models. - Temperature measurements in the troposphere have
not matched model predictions, which calculate
that the temperature must increase from 7 to 13
kilometers above the surface in order for the
anthopogenic mechanism to work. Actual
measurements of temperatures in the last 25 years
have shown temperatures in this atmospheric range
much lower than the models predicted. - Recent data by Aqua satellites have found that
the predicted carbon dioxide/water vapor feedback
mechanism to be negative (decrease in water vapor
and increase in infrared radiation emission into
space with increase in carbon dioxide) instead
of positive, as required by computer models.
Due to limitations of the effect of carbon
dioxide infrared absorption with concentration, a
positive feedback mechanism is essential for the
anthropogenic climate change hypothesis to be
correct. - Argus buoys have found ocean temperatures have
decreased in the past five years, contradicting
most model predictions.
70Natural Phenomena Climate Drivers
- Variation in solar irradiance correlates very
closely with global temperatures in both geologic
and recent time scales. - In recent time scales ocean current phenomena
such as ENSO and PDO have also correlated very
closely with global temperatures. - Precipitation systems in the atmosphere have been
shown to have large buffering effects on
temperature increases and variations in
atmospheric gas concentrations based on current
NASA satellite data.
71Conclusions
- Actual data measuring parameters testing
hypothesis of anthropogenic global warming have
determined its predictions do not match actual
atmospheric conditions. - Warming of the past 400 years since the Little
Ice Age is much better explained by natural
phenomena, the combination of increased solar
activity and ocean current variations and their
measurable effect on global temperatures. - Recent quiescence of sun during switch from solar
cycle 23 to 24 indicate a period of global
cooling may be starting, reinforced by the PDO
and ENSO cooling ocean pattern cycles which have
been observed this past two years.
72The Role of the Political Organizations, the
Media, and the Scientific Community in distorting
the actual state of science on Climate Change
- The general public is under the mistaken
assumption that the United Nations IPCC is a
neutral scientific body. It is not. It is a
political organization whose charter specifically
called for determination of how human produced
global warming was affecting the planet. It
assumes that humans are affecting the climate and
looks for scientific research which may supply
evidence for that hypothesis and ignores or
suppresses contradictory evidence. Its general
summations are notorious for this. It has also
used scientific papers without proper independent
peer review that support its position. The Mann
papers on proxy determined historical
temperatures being the most notorious example.
These papers used utterly flawed statistical
methods to analyze proxy measurements of
historical global temperatures and state the
earth in the late 20th centrury was the warmest
in over 1,000 years. Outside independent review
forced the retraction of that paper. It is now
accepted that temperatures within the last 20
years (called the late 20th century warm period)
are lower than temperatures that occurred other
cyclically occurring historical warm periods such
as the Minoan Warm period (1400 1300 BC), the
Roman Warm period (300 100 BC), and the
Medieval warm period (800 1000 AD). - Besides the UN, organizations such as the Nobel
committee have glorified politicians pretending
to be scientists whose dissertations on global
warming have been shown to be at least misleading
and in most cases demonstratably false.
73The Role of the Political Organizations, the
Media, and the Scientific Community in distorting
the actual state of science on Climate Change
- The media have offered extremely poor reporting
of the state of the science of global warming.
The media is biased toward sensationalism,
because it is believed this engenders good
ratings. Therefore they consistently report the
state of climate science with the theme the sky
is falling and the planet is being destroyed. A
few examples, after the year of Hurricane Katrina
and Rita most media posited that human induced
global warming was probably making hurricanes
more frequent and dangerous. Did they retract
that position after three very quiet hurricane
years? Of course not. Has the media reported
that there has been no increase in global
temperatures the last ten years? No. Has the
media reported that the Antarctica has gotten
increasing colder overall the last 50 years and
the amount of ice and snow mass has steadily
increased during these 50 years? No, they report
large ice sheet fractures and releases, which are
spectacular, but are small compared to the amount
of ice and snow mass increase. The media reported
at the beginning of this summer that the north
pole might have no ice this year. They have
ignored the fact that this winter was the coldest
globally in 50 years, that Alaska has had a very
cool summer, and that there is almost no chance
the north pole ice will vanish this year. They
also try to frighten the public about extinction
of polar bears due to lose of habitat, ignoring
the fact that the polar bear population has been
growing steadily for 50 years and now is
extremely robust. - In general the media report readily news that
predicts that humans are causing global
temperatures to rise while ignoring scientific
research showing these positions have no basis in
fact. The media also attempts to demonize
scientists whose work refutes anthropogenic
global warming calling them climate doubters and
darkly implying they are tools of oil companies.
74The Role of the Political Organizations, the
Media, and the Scientific Community in distorting
the actual state of science on Climate Change
- The scientific community is also not unbiased in
climate research. It is much easier to obtain
grant money if you proclaim that your research
will investigate some aspect of humans
destroying the planet than if you propose to
study the natural variation of climate. - A large number of climate scientists careers are
based on findings which they believed indicated
human induced global warming. These scientist
are reluctant to have their lifes work shown to
be fatally flawed, just like any normal human is
reluctant to be told his job is worthless.
Therefore there is considerable resistance to any
finding or funding of research that intends to
seriously challenge that hypothesis of human
induced global warming. Nevertheless, this
research is proceeding and yielding results that
directly contradict the anthropogenic hypothesis.