Global Warming

Global Warming

• Caused By Excess CO₂ in atmosphere generally caused by burning of fossil fuels by automobiles or industry.

• CO₂ traps heat energy in the atmosphere slowly increasing global temperature via the Greenhouse Effect

• Visible light passes through atmosphere to surface heating it.
• Infared (heat) energy cannot pass out so easily and is trapped. Increasing the global temperature.

 

• Global temperatures may have risen approx. 3⁰C overt the lact century

• Overall concern is that warming may cause melting of the polar ice caps. This would raise the sea level and cause gradual flooding of areas close to sea level. Already very large portions of ice have split from the ice sheets in Antactica and Greenland.

Iceberg the size if Rhode Island calving from the Greenland Ice Sheet