Title: 1. Philosophy
11. Philosophy Fundamental Concepts
- Lecture outline
- Introduction to Environmental Geology
- How Geologists Work The Scientific Method
- Culture and Environmental Awareness
- Environmental Ethics
- The Environmental Crisis
- Fundamental Concepts of Environmental Science
2Introduction to Environmental Geology
- Earth formed about 4.6 billion years ago from
solar nebula - Life on earth began about 3 billion years ago
- Humans evolved during the Pleistocene in the
last 1.65 million years (0.05 of age of the
earth)
3Introduction to Environmental Geology
- Because of our brain development and anatomical
build humans have unprecedented capacity to
alter the environment - Provide basic human needs of food, water,
clothing, shelter - Find, extract, and utilize natural resources
- Evaluate landscapes for human activities
- Identify, mitigate or eliminate natural hazards
(floods, landslides, earthquakes, etc.)
4Introduction to Environmental Geology
- Geology study of Earth
- Environmental Geology branch of geology that
studies human interactions with the environment - Environmental opportunities (resources) and
constraints (hazards) on human activities - Human impacts on the environment
5Introduction to Environmental Geology
- Environment processes, materials, forms in the
atmosphere, hydrosphere, geosphere, biosphere - Goal recognize potential geological problems in
advance, then mitigate or eliminate - Today field studies (surface, borehole,
geophysics), lab studies, computers, maps, remote
sensing - In USA Canada greatest exposure to death or
injury is from.automobile travel
6Introduction to Environmental Geology
- Typical projects
- Water resource development (groundwater surface
water) protect quantity quality - Waste disposal landfills, hazardous waste
- Hillslope stability avalanches, mass movement
- Seismic volcanic risk
- Erosion control water, wind, ice
- Reclamation of disturbed lands
7How Geologists Work The Scientific Method
- Most scientists have a basic curiosity about how
the world works
8How Geologists Work The Scientific Method
- From On the Loose by Jerry Renny Russell
- One of the best-paying professions is getting
ahold of pieces of country in your mind, learning
their smell and their moods, sorting out the
pieces of a view, deciding what grows there and
there and why, how many steps that hill will
take, where this creek winds and where it meets
the other one below, what elevation timberline is
now, whether you can walk this reef at low tide
or have to climb around, which contour lines on a
map mean better cliffs or mountains. It feels
good to say I know the Sierra or I know Point
Reyes. But of course you dontwhat you know
better is yourself, and Point Reyes and the
Sierra have helped.
9How Geologists Work The Scientific Method
- Thrill of discovery is what excites and motivates
scientists - Goals of science describe, explain, predict
- Discovery process starts with identifying a
problem of interest and making observations in
the field and/or in a laboratory
10How Geologists Work The Scientific Method
- Based on those observations, the scientist
develops one or more questions about those
observations - The scientist suggests one or more possible
answers hypotheses or multiple hypotheses
11How Geologists Work The Scientific Method
- Hypothesis is a statement about how the scientist
thinks the world works - Must be tested by collecting and analyzing data,
then drawing a conclusion - Compare the conclusion with the original
hypothesis to either accept or reject it - Whenever hypothesis is rejected form new set of
hypotheses and start the process over
12How Geologists Work The Scientific Method
- Hypotheses (continued)
- If a hypothesis survives testing in a variety of
geographical settings becomes a theory - New evidence often disproves an existing
hypothesis or theory - In rare cases, a theory is found to be
universally proven law - Most of work of scientist is to develop and test
hypotheses, striving to reject current ones and
develop better ones
13Culture Environmental Awareness
- Scientists can develop and test hypotheses but to
translate scientific understanding into actions
to prevent, mitigate, eliminate problems requires
appreciation ofpolitics, culture, ethics,
religion, and aesthetics - Recommended reading Facing Mt, Kenya by Jomo
Kenyatta - Consider how Americans may urge lesser developed
countries to stop clear-cut logging, dam
building, water pollution, soil erosion dont
throw stones in a glass house
14Culture Environmental Awareness
- Consider differences among Americans on these
same issues (and many others) - Views promoted by political parties (Republicans,
Democrats, Libertarians, Greens) on the role of
government protecting the environment and
regulating human activities that could affect the
environment - Wealthy vs. impoverished
- Views on birth control promoted by religious
leaders - Recommended reading Encounters with the
Archdruid by John McPhee
15Environmental Ethics
- Ethics principles, values, moral choices held
by individuals, families, organizations,
communities, states, regions, countries - Call for development of a Land Ethic
- philosophical framework for human behavior that
leads to sustainable economy environment (8
concepts forthcoming) - Understand the earth as a set of ecosystems
community of organisms interacting with the
non-living environment in which materials cycle
and energy flows
16Environmental Ethics
- Recommended reading
- A Sand County Almanac by Aldo Leopold
17The Environmental Crisis
- Irreversible environmental degradation of air,
land, water, plants, wildlife - Because of overpopulation, urbanization, and
industrialization - Environmental degradation transcends political
systems and religious beliefs - We have made real progress toward identifying
problems - Most progress in prevention, mitigation,
elimination of problems has occurred in developed
countries
18Fundamental Concepts of Environmental Science
- 1. Population Growth
- The number one environmental problem is the
increase in human population
19Fundamental Concepts of Environmental Science
- Population Growth (continued)
- Current world pop. 6.2 billion
- Growth birth rate death rate
- By 2050 at present growth rate 9-10 billion
- Current growth rate 1.6
- Doubling time 70/1.6 44 years
- Ultimately will be controlled be natural
disasters, mass starvation, ecological degradation
20Fundamental Concepts of Environmental Science
- 2. Sustainability
- Sustainability is the environmental objective
- Environmental awareness advocacy groups, Earth
Day - Environmental education K-12 universities
- Environmental legislation to protect critical
environments or regulate BIG
21Fundamental Concepts of Environmental Science
- 3. Systems
- Understanding the Earths systems and their
changes is critical to solving environmental
problems. The earth itself is an open system
with respect to energy, but essentially a closed
system with respect to materials
22Fundamental Concepts of Environmental Science
- 4. Limitation of Resources
- The earth is the only suitable habitat we have,
and its resources are limited
23Fundamental Concepts of Environmental Science
- 4. Limitation of Resources (continued)
- Human impact (population) x
- (resource use per person) x
- (environmental impact per unit of resource use)
- Consider energy use, water use, food
- Reduce, reuse, recycle
Aerial view of un-reclaimed coal mine spoils, NW
Colorado
24Fundamental Concepts of Environmental Science
- 5. Uniformitarianism
- The physical processes modifying our landscape
today have operated throughout much of geologic
time. However, the magnitude and frequency of
these processes are subject to natural and
artificially-induced change
25Fundamental Concepts of Environmental Science
- 6. Hazardous Earth Processes
- There have always been earth processes that are
hazardous to people. These natural hazards must
be recognized and avoided where possible and
their threat to human life and property minimized
26Fundamental Concepts of Environmental Science
- 7. Geology as a Basic Environmental Science
A fundamental component of every persons
environment is the geologic component, and
understanding our environment requires a
broad-based comprehension and appreciation of the
earth sciences and related disciplines
27Fundamental Concepts of Environmental Science
- 8. Our Obligation to the Future
-
The effects of land use tend to be cumulative,
and therefore we have an obligation to those who
follow us
28Careers in Environmental Geology
- Lecture outline
- What is an environmental geologist?
- What do environmental geologists do?
- Where do they work?
- What is the job and salary outlook?
29What is an Environmental Geologist?
- Geologists pursuits are fun but also useful
- Understand how the earth works and how it has
evolved from a landscape of barren rock to the
complex landscape dominated by life we see today - To apply that understanding to better manage our
environment
30What is an Environmental Geologist?
- Environmental geologists are curious about the
Earth - Appreciate the incredible diversity of geological
settings on Earth - Thrill of discovery is what excites and motivates
most scientists - Love of travel, maps
31What do Environmental Geologists do?
- Want to understand causes of geological hazards
(ranked below in terms of magnitude/frequency,
loss of life, economic loss, long-term impact) - Floods river erosion
- Earthquakes
- Volcanic eruptions
- Tsunamis
- Expansive soils
- Sea-level rise
- Dust storms
- Mass movement
- Beach erosion
32What do Environmental Geologists do?
- Is this task important? Relevant?
- Average annual worldwide death toll from natural
disasters 150,000 - Average annual worldwide economic loss 20
billion
33What do Environmental Geologists do?
- Evaluate landscapes for development,
environmental impact - Agriculture
- Mining
- Urbanization
- Forestry
- Water development
34What do Environmental Geologists do?
- Is this task important? Relevant?
- Demand for resources increasing because
- Population increasing (45 year doubling time!)
- Desire to improve quality of life
- Careful site selection can avoid problems later
35What do Environmental Geologists do?
- Understand the hydrologic processes of
groundwater and surface water - As processes affect water supply
- As processes affect water quality (incl.
pollution)
36What do Environmental Geologists do?
- Is this task important? Relevant?
- Conflicts over water may initiate wars
- Pollution of surface and groundwater sewage,
landfills, mining wastes, deep-well disposal,
feedlots, industry - Groundwater mining
- 75,000 dams in USA
37What do Environmental Geologists do?
- Evaluate rocks and soils to determine
- Potential use as resources
- Effects on human health
38What do Environmental Geologists do?
- Is this task important? Relevant?
- Geologic controls on trace elements important to
health lead, fluorine, iodine, zinc, selenium - Relation between soft water and heart disease
- Relation between radon gas and lung cancer
- The most productive soils are being depleted 7
per year
39What do Environmental Geologists do?
- Problems in environmental geology that Dr.
Marston has addressed in his own research - What are geologic controls on movement of
leachate from Norman City Landfill into Canadian
River? - Have erosion control measures been placed in
effective places in a arid, badland watershed in
Wyoming? - Does clearcut logging affect the dimensions of
stream channels and the role of large woody
debris in those channels? - What factors control the potential for dust
storms in the Chihuahuan Desert? - What is the impact of military maneuvers on
sandstorms?
40What do Environmental Geologists do?
- Problems in environmental geology that Dr.
Marston has addressed in his own research
(continued) - What factors affect floods and mass movement in
the Nepal Himalaya? - Does clearcut logging accelerate mass movement in
all mountain landscapes of SE Wyoming? - How do river channel changes affect floodplain
vegetation along the Snake River, WY, and the Ain
River, France? - Has channelization of the Rio Grande affected
streamflow available downstream and seepage into
shallow groundwater?
41What do Environmental Geologists do?
- Problems in environmental geology that Dr.
Marston has addressed in his own research
(continued) - Has reclamation of a surface mine in NW Colorado
been successful? - What are the prospects for future water supply in
the worlds largest border community, El
Paso-Ciudad Juarez? - How are glaciers changing in the Wind River
Range, WY, and how important are they do water
supply? - What portions of Oregon Coastal sand areas are
most sensitive to impact from ORVs, housing
developments?
42Where do Environmental Geologists work?
- Private sector
- Environmental geology section w/i resource
extraction firms - Oil and gas
- Minerals
- Water development
- Forestry
- Environmental/engineering consulting firms
- Service organizations
43Where do Environmental Geologists work?
- Government sector
- International UN agencies
- Federal
- Regulatory agencies EPA
- Research, data collection USGS, DOE, NOAA
- Resource management USFS, BLM, NRCS, BOR, USACOE
- Intelligence DOD, CIA
- State DEQ, OWRB, OCC, OGS
- Local planning
44Where do Environmental Geologists work?
- Education service
- Public education
- Secondary earth science teachers
- Universities
- Service organizations
- Private foundations
- Environmental organizations
45Where do Environmental Geologists work?
- Working conditions
- Office data analyses, modeling, writing
- Field
- Surface collect samples, mapping
- Subsurface drilling, geophysics
- Lab
- Sample dating
- Physical and chemical properties of rocks, soil,
water
46Where do Environmental Geologists work?
- Where are Dr. Marstons former M.S. students
working? - Government agencies 12 (Dolan, Dudding, Ferree,
Massey, Miller, Neto, Newton, Norsby, Pickup,
Smith Veryzer, Wrazien) - Environmental consulting 6 (Dupuy, Furin, Haire,
Hope, Marshall, McNamera) - Currently pursuing doctoral degree 5 (Bayer,
Borges, Castro, Nordberg, Wolken) - Research Labs 4 (Arneson, Berelson. Mills,
Saunders) - Teaching extension 4 (Green, Greer, Thorburn,
Wick) - University professor 1 (Gillespie)
- Intelligence agencies 1 (Varuska)
- Outside Geology 2 (Clarendon, Davison)
47What is the job and salary outlook?
Source AAPG Explorer May 2001
48What is the job and salary outlook?
- Approximately 50,000 geologists (all specialties)
employed in USA - Of recent hires in the geosciences
- 27 were in oil gas business
- 38 in environmental, hydrological, geotechnical
business - 11 in academia
- 11 in government
- 6 in mining industry
- 6 in research labs
49What is the job and salary outlook?
- Essential job skills training, experience,
aptitude - Technical writing and oral communications
- Statistics, algebra
- Computer skills GPS, GIS, remote
sensing, Microsoft office
applications - Computer modeling (Rockworks)
- Knowledge in basic concepts of geology
- Geological techniques well logging, aquifer
testing, field mapping, soil sampling,
stratigraphic analysis, shallow geophysics
50What is the job and salary outlook?
- Choosing a career
- Find something you like to do and will help make
the Earth a better place to live - Obtain education and training to prepare yourself
- Find someone to pay you
- Make everyday your masterpiece