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Unformatted text preview: mate] change
over the past 50 years cannot be explained
by natural processes alone.” US Climate Change
http://www.climatescience.gov/Library/pressreleases/pressrelease2may2006.htm 7 43 Per Capita CO2 Production 2005 44 Not all the evidence clearly points to
There are contradictory news story
almost every day.
All we can do is take the best
evidence we can get, listen to the
most reliable sources, and try to
make the most prudent decisions. • The top 5 producers of
CO2 (per 1,000 people,
in metric tons):
19.5 But Isn’t There Controversy? CO2 production, per 1,000,
in metric tons. Source: http://www.nationmaster.com/ ;
Data source: Secretariat of the UN Framework Convention on Climate Change (UNFCCC). 45 46 Sometimes the
research is serious,
sometimes it seems
silly. Chacaltaya: End of a Glacier More information
Source: http://news.bbc.co.uk/2/hi/americas/6496429.stm; http://www.miamiherald.com/news/americas/story/1030126.html;
http://www.nytimes.com/2007/02/02/world/americas/02bolivia.html?_r=1 47 Warming of the climate system
For the next two decades
temperatures will rise by 0.2˚C,
with continued rising through
the end of the century. A total
rise in global average
temperatures of about 2.0˚C4.5˚C (3.6 - 8.1°F) is likely.
Predicted sea level rise is 0.30.8m (11.8-31.5 in).
Snow cover at the global scale
is predicted to contract, with
widespread thawing of
Mmidlatitude and tropical
storm tracks are predicted to
Precipitation may increase at
higher latitudes and decrease
in the subtropics.
Climate changes will persist for
centuries. Highlights from the
IPCC 2007 Summary
for Policymakers 48 Global-Scale Air Pollution: Ozone
GlobalOxygen makes up about 21%
of the atmosphere. Most of
the time, atmospheric oxygen
atoms travel in pairs — as O2
However, oxygen in the
atmosphere can exist in
another form — as O3 or
ozone. Source: http://uarsfot08.gsfc.nasa.gov/HP_THEME/Ozone_...
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This note was uploaded on 12/16/2010 for the course GEOG 102 taught by Professor Osborn during the Fall '10 term at San Diego State.
- Fall '10