Human activities are the primary cause of climate change. The burning of fossil fuels increases greenhouse gas emissions, while deforestation removes trees that absorb carbon dioxide from the atmosphere. A growing population requires more energy and food production, releasing additional greenhouse gases. Some effects of climate change include rising sea levels from melting ice caps, disrupted animal habitats, and more frequent extreme weather events like droughts and hurricanes.

1. ClimateChange

2. Human causes of climate change
• Increasing green house gas emissions from burning fossil
fuels-oil, coal, gas
• Pollution, smog from factories
• Large forests have been cut down (trees absorb CO2 and
pollution, deforestation creates about 6 billion tons of
CO2 per year )
•

3. Human causes of climate change
• Increasing world population - more people requires more
food, energy, transportation, etc.
• Farms animals release methane from their wastes.
• More people also means more CO production
•

4. Smog and Pollution From Factories

5. Farm animals – Release of
methane from
their waste

6. Deforestation

7. Some Effects of Climate Change
• An average increase in Earth’s temperature during the
last century
• Melting of polar ice — polar bears and other animals
are drowning
• Migrating birds are forced to
change their time and place of
migration
• Melting of glaciers will lead to
higher sealevel, which will cause floods and put many
low – elevation regions at risk of disappearing
underwater

8. Some Effects of Climate Change
• Longer summers can disrupt animal habitation
• New and wide spread diseases because of warm climate

9. Some Effects of Climate Change
• Damaged crops due to sudden climate
change and floods Average precipitation
increase around the world
• Droughts, heatwaves, extreme winter, sandstorms,
hurricanes, typhoons More wild fires

11. AlternativeEnergySourcesand
WhatYouCanDo

12. HelpSaveEarth

13. WorksCited
•
•
•
•
•
•
•
•
•
http://www.edugreen.teri.res.in/EXPLORE/climate/causes.htm
http://www.direct.gov.uk/en/Environmentandgreenerliving/Thewidere
nvironment/Climatechange/DG_072920
http://library.thinkquest.org/J0034/causes.htm
http://www.tropical-rainforest-animals.com/Global-Warming-
Causes.html
http://www.globalwarming.org.in/global-warming-facts.php
http://environment.nationalgeographic.com/environment/global-
warming/gw-effects.html
http://www.effectofglobalwarming.com/images/What-is-global-
warming-img.jpg
http://www.hickerphoto.com/global-warming-pictures-
photos.htmhttp://support.nature.org/site/PageServer?pagename=c
ontest_ph6