Transcript Climate Change - Sauer Science

Climate Change
Some Climate Change
Statistics
 2007: Intergovernmental Panel on
Climate Change (IPCC)
 Oceans will rise 7-23 inches by
year 2100
 90% certain that humans caused
accelerated warming of 20st
century
 Higher CO2  Global Warming
 Climate Change
 Changes timing & length of
seasons
 Changes rainfall amounts
Climate Change
 Climate change:
significant, long-lasting
changes in weather
patterns
 Includes…
 Intensity of weather
 Number of severe
weather events
 Regional or Global
Is Climate Change the
same as Global Warming?
 No!
 Global warming contributes to climate
change
 Warmer temperatures affect world
weather patterns:
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

Rainfall amounts
Storms
Droughts
Sea Level
So what is Ozone?!
-OZONE
(O3)
-CFCS?
-WHY DO
WE NEED
OZONE?
Greenhouse Gases
 Greenhouse Gases are naturally present in the
Earth’s atmosphere
 GGs help maintain a “healthy” global temperature by
trapping heat
 Greenhouse Gases:
 Water vapor (H2O)
 Carbon Dioxide (CO2)
 Methane (CH4)
 Nitrous Oxide (N2O)
 Ozone (O3)
Greenhouse Effect
 “The Greenhouse Effect”: the
“trapping” of heat by greenhouse
gases in the atmosphere
 The “trapped” warms the Earth
 Greenhouse Effect is
NORMAL, but has been
amplified by human
production of CO2
How does it work?
Humans  CO2 Production  Global Warming  Climate Change
Before Global Warming
After Global Warming
• VERY close
to ocean
• Result of
coastal
erosion
So…
Officials had to move
Cape Hatteras
Lighthouse 2,870 feet
inland!
1999-2000
Peterman Glacier,
Greenland