Title: Deforestation
1Deforestation
Cody Clark, Rosie Salas, and Janet Shektmeyster
2Overview of Topic
- Deforestation is the conversion of forested areas
to non-forested - Generally this removal or destruction of
significant areas of forest cover has resulted in
a degraded environment with reduced biodiversity - Deforestation greatly contributes to greenhouse
gas accumulation in the atmosphere - If the current rate of deforestation continues,
the worlds forests will vanish within 100 years
3Image source http//images.wri.org/sdm-gene-02-de
forestation.jpg
4Background
- Deforestation has been practiced by humans for
thousands of years. - Fire was first tool that allowed humans to modify
the landscape - Deforestation correlated with the agricultural
revolution as space is needed for crops (8-10
thousand years ago)
5Rationale
- Growing worldwide demand for wood
- Forest used for fire wood or in construction,
paper and furniture - Clearing land for commercial and industrial
development (including road construction) - Growth of Local Populations in rural areas
increases demand for agricultural space and wood
fuel
6Rationale (continued)
- Timber and logging industries are one of the main
culprits of deforestation in the Boreal Forests - Land clearing for grazing cattle
- Agricultural expansion for local and exportable
crops
7Effects of Deforestation on Climate
- Deforestation alters the hydrologic cycle,
potentially increasing or decreasing the amount
of water in the soil and groundwater and the
moisture in the atmosphere - Forests act as a sink for carbon which reduces
the greenhouse effect and global warming
8Effects of Deforestation on Climate
- Nearly half of the estimated 52 billion tons of
carbon stored in the Earth's biomass is found in
tropical forests1 - Deforestation contributes around 25 of global
greenhouse emissions through the rotting and
burning of vegetation2 - CO2 has increased in the atmosphere 30 in the
last 250 years mostly due to deforestation and
forest fires3
9Deforestations Contribution to Global Warming
Image source http//www.ucsusa.org/global_warming
/solutions/recognizing-forests-role-in-climate-cha
nge.html
10Effects of Deforestation on Climate
- Forest and land-use measures have the potential
to reduce net carbon emissions by the equivalent
of 10-20 of projected fossil fuel emissions
through 20504 - Deforestation can lead to
- Soil erosion
- Landslides
- Flash flooding
- Alteration in forest biodiversity
- Increased temperatures (estimated to reach 130
during the day) - Drought
11Anti-deforestation Measures
- Increased policing of Amazon regions
- 2004 saw the start of integrated actions
undertaken by the federal police, federal highway
police and labor ministry. There was a further
83 in registered infractions, 73,000 cubic
meters of illegally-logged timber were
confiscated, and six anti-deforestation combat
bases (there will eventually be nineteen) were
created. - More frequent satellite sweeps of the region to
pinpoint illegal activities. - http//www.brazilsf.org/brazil_press5.htm
12Kyoto Protocol Connections
- Forests in many parts of the world act as major
carbon absorbers providing the necessary leeway
for different countries emissions - Under the Kyoto Protocol countries that exceed
their targeted cuts in GHG emissions or are
producing less than the required limit, will be
able to sell emission-reduction credits to those
unable to meet their targets - With deforestation and the loss of many forests,
the carbon storage value dissipates - Countries will loose substantial economic revenues
13Compensated Reduction
- Countries that elect to reduce national level
deforestation to below a 1980-1990 level would
receive post facto compensation - This will create large scale incentive to commit
to stabilization and further reduction of
deforestation in the future - This will also facilitate significant developing
country participation in the Kyoto Protocol
Framework
14Driving forces behind deforestation in Brazil
- Tax laws
- Corporations and individuals can exclude up to
80-90 (respectively) of agricultural profits
from their taxable income under various
provisions of the tax code Demand for land
becomes extremely high, as agricultural projects
become extremely attractive to corporate and
private investors.
15Driving forces behind deforestation in Brazil
- This system harms the small, poor farmer, since
the low tax rate level becomes capitalized into
the price of land, reflected in high land prices,
making it unprofitable for the poor farmers of
Brazil. This forces them to move further into the
Amazon in search of cheap, unclaimed land,
leading to the rules of land allocation that
further encourage deforestation.
16Driving forces behind deforestation in Brazil
- After 5 years on a plot of land, the inhabitant
gets legal title to that land. This encourages
poor farmers to go into the forest and clear land
for themselves as it will be granted directly to
them after 5 years - http//www.rcfa-cfan.org/english/issues.12-6.html
17Driving forces behind deforestation in Brazil
- Uncleared forest land is considered unused,
resulting in higher taxes - Three major changes needed lower the amount a
single land owner can hold from 3000 hectares to
100-200 hectares, land holding ceilings need to
be implemented (or reduced) for corporations, and
the definition of used land needs to include
various forms of forest management schemes. - http//www.colby.edu/personal/t/thtieten/defor-bra
zil.html
18Questions For Group
- Do you have any other proposed incentives to curb
deforestation other than changing tax laws,
increasing policing and carbon trading? - If deforestation is an issue in your country, are
there any anti-deforestation programs that you
have successfully implemented?
19Works Cited
Wikipedia National Intelligence Council Tropical
Deforestation and the Kyoto Protocol A new
proposal http//conserveonline.org/docs/2004/07/Tr
opical_Deforestation_and_Kyoto_Protocol.pdf http/
/www.physorg.com/news7491.html http//www.climnet.
org/EUenergy/forests_and_climate_change/index.htm
http//www.rcfa-cfan.org/english/issues.13.html ht
tp//www.ucsusa.org/global_warming/solutions/recog
nizing-forests-role-in-climate-change.html