climate change

Tuvalu is going to be overwhelmed by water.
The places in danger!
Venice
The places in danger!
Maldives
The places in danger!
Great Barrier Reef
Beautiful coralline
Results towards human & animals:
1. Global warming causes the melting down of Himalayas glaciers, and lead to the risk of water storage. Himalayas glaciers ,which is called Asian water tower ,are the source of many major large rivers of China even Asia. Human beings burn fossil fuels and cause the global warming, making glaciers melt faster. According to current global warming trend, less than 30 years , 80% of the area of the Himalayan glaciers would melt out, which worsen the serious situation of China’s water storage.
Ozone Depletion / Ozone Hole
Ozone Hole The excessive use of CFCs(氯氟烃) is the main cause of the Ozone Hole. And it may increase the rate of skin cancer.
Results towards human & animals:
2. Extreme Weather Blizzard, storm, flood, drought, hail, lightning, typhoon……these are not only the scenes in disaster movies, such as 2012, the Day After Tomorrow, but also exist in our real world. Extreme weathers, in recent years, come to Earth abnormal frequently, and it have a lot of thing to do with the global climate change related.
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Climate Change
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Climate Change
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• Definition • Reasons • Main examples • Results towards human &animals
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Definition:
According to UNFCCC (United Nations Framework Convention on Climate Change ),climate change refers to that After a considerable period of time of observation, the climate change led by the humans’ directly or indirectly activities, which change the global atmospheric composition, besides natural climate change.
The places in danger!
Shanghai
The places in danger!
New York
The places in danger!
Mumbai
Results towards human & animals:
4.Threat to biodiversity Most endangered creatures, about 25% of mammals and likely 12% of birds are facing with extinction in decades. This is due to climate change, affecting their habitats of woods, wetland and pasture, and the human development also block they migrate to other places.
源自文库
ice disaster in Hunan,2008
Drought in Yunnan ,2010
Results towards human & animals:
3. Sea level rise Sea level rise is the phenomenon of global sea level rise due to the climate change, melt of polar glaciers and the thermal expansion of upper sea surface. Tuvalu, is the first nation to move out because of sea level rise. Now it is relocated to New Zealand.
UNFCCC
Reasons:
• • Natural factors Man-made factors
Greenhouse gases releasing
Trees cutting
Main examples:
Global Warming means that ,in a period of time, the raising temperature of Earth atmosphere and the Oceans, which is mainly caused by man-made factors.
The Ice Sheets melt down.
Main examples :
Acid Deposition / Acid Rain The acid rainfall whose PH value is less than 5.56 , which corrode buildings.
Main examples :
Frog
Rainforest of Puerto Rican
Earth，where to go?
Take in action，Green our future Live in harmony