Climate Change

Major Causes of Climate

Change
Hum a n Ca us e s
• In c r e a s in g g r e e n h o u s e
g a s e m is s io n s f r o m
b u r n in g f o s s il f u e ls - o il ,
c o a l, g a s
• P o llu t io n , s m o g f r o m
f a c t o r ie s
• La r g e f o r e s t s h a v e b e e n
c u t d o w n (t r e e s a b s o r b
N a tu ra l C O 2 a n d p o llu t io n ,
Ca us e s d e f o r e s t a t io n c r e a t e s
a b o u t 6 b illio n t o n s o f
• t h e a r c t ic t u n d r a a n d C O 2 p e r ye a r)
w e t la n d s r e le a s e
• In c r e a s in g w o r ld
m e th a n e , a g re e n h o u s e
gas p o p u la t io n - m o r e p e o p le
r e q u ir e s m o r e f o o d ,
• E a r t h n a t u r a lly h a s a
e n e r g y , t r a n s p o r t a t io n ,
c y c le o f c lim a t e c h a n g e e t c . F a r m s a n im a ls
th a t o c c u rs e v e ry 4 0 ,
r e le a s e m e t h a n e f r o m
0 0 0 ye a rs
t h e ir w a s t e s .
• t h e s u n ’ s s o la r e n e r g y • M o r e p e o p le a ls o m e a n s
o u t p u t is c h a n g in g a n d
m o r e C O p r o d u c t io n
Smog and Pollution From Factories
Farm Animals Release Methane
From their Wastes
Deforestation
 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 sea level, which will cause floods and
put many low-elevation regions at risk of disappearing under water
• Longer summers can disrupt animal habitation
• New and widespread diseases because of warm climate
• Damaged crops due to sudden climate change and floods
• Average precipitation increase around the world
• Droughts, heat waves, extreme winters and storms, hurricanes, typhoons
• More wildfires
Alternative Energy Sources
and What You Can Do
Help Save Earth
 Works Cited
• 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/J003411/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.htm
• http://support.nature.org/site/PageServer?pagename=contest_ph6