Global Warming Inconvenient truth handout Physics of anthropogenic global warming Key diagrams Consequences What can you do? What causes Global Warming? Addition of greenhouse gases to atmosphere Main culprits are Carbon Dioxide, Methane, and water Trees take up CO 2 Animals Produce
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Inconvenient truth handout
Physics of anthropogenic global warming
What can you do?
CS Fig. 15.20
Measurements of air in Hawaii
Measurements of ancient air preserved in ice
air of past cent-
Tell us what CO2
were like before
For recent warming
For prior warming
Works!Best evidence that recent warming is anthropogenic
Three years in the
1990’s are the
warmest in the
by far, of the last
Data from Mann
The maximum degree of global warming, as predicted by 95,000 home computers
Stainforth, D. A. et alNature433, 403−406 (2005).
“Recent research indicates a warming trend in Minnesota. A study of the climate record at Fort Snelling shows an increase of 2.9°F in average annual temperature between the 1860s and 1987, almost three times the worldwide average. Analyses of more than a hundred temperature-depth profiles in North America show that ground latitudes comparable to Minnesota’s indicated ground warming of up to 3.6°F.”
From “Playing with Fire, Global Warming in Minnesota” 1999; data from Baker and Skaggs, 1989