Global warming

1. GLOBAL WARMING AND THE
GREENHOUSE EFFECT

2. DIFFERENCE BETWEEN GLOBAL
WARMING AND THE GREENHOUSE
EFFECT
Global warming refers to a rise in the
temperature of the surface of the earth.
The Greenhouse Effect is a process by which
thermal radiation from a planetary surface is
absorbed by atmospheric greenhouse gases,
and is re-radiated in all directions.

3. EGEE 102 - Pisupati
3

10. Carbon dioxide:
combustion of solid waste, fossil fuels (oil, natural gas, and coal), and
wood and wood products
Methane :
production and transport of coal, natural gas, and oil. Methane
emissions also result from the decomposition of organic wastes in
municipal solid waste landfills, and the raising of livestock.
Nitrous oxide:
agricultural and industrial activities, as well as during combustion of
solid waste and fossil fuels.
hydrofluorocarbons (HFCs), perfluorocarbons (PFCs),
and sulfur hexafluoride (SF6),
industrial processes.

11. Since pre-industrial times atmospheric concentrations of
CO2, CH4 and N2O have climbed by over 31%, 151%
and 17%, respectively.
Scientists have confirmed this is primarily due to human
activity. Burning coal, oil and gas, and cutting down
forests are largely responsible.

12. Effects
Health
Water resources
Polar regions
Mountains
Forests
Deserts
Coastal Zones
Agriculture

15. We can make some simple substitutions
Replacing just 1 incandescent light bulb with 1 compact
florescent bulb saves about 150 pounds of carbon
dioxide per year!
If every American household replaced just 5 high-use
incandescent bulbs with compact florescent lights we'd
collectively save more than $8 billion each year in energy costs
and we would prevent the greenhouse gases equivalent to the
emissions from nearly 10 million cars.
Source: http://www.energystar.gov

16. SOME PROOF OF GLOBAL WARMING
PORTAGE GLACIER ALASKA
THEN….
PORTAGE GLACIER ALASKA
NOW….

17. COLORADO RIVER, AS OF
JUNE 2002
COLORADO RIVER, AS OF
DECEMBER 2003

18. Catastrophic weather such as
hurricanes will increase.

19. Melting polar icecaps will raise ocean
levels; the Arctic Ocean could be
ice free in summer by 2050.

20. Up to 300,000 people a year
will die – partly from the
spread of tropical diseases.

21. More than a million species
worldwide could be extinct
by 2050.

22. The future of our coastal cities?

24. The Kyoto Protocol is an international treaty which extends the
1992 United Nations Framework Convention on Climate Change
(UNFCCC) that commits State Parties to reduce greenhouse gas
emissions, based on the premise that (a) global warming exists
and (b) human-made CO2 emissions have caused it.