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Global warming
1. GLOBAL WARMING
2.
The atmosphere already hasa natural supply of
“greenhouse gases”
3. They capture heat and keep Earth warm enough for us to live in
4.
uninhabitable frozen wasteland5. Factories
6. Burn more and more fossil fuels
7. to run our cars
8. Planes
9. Gases can stay in the atmosphere for at least 50 years and even up to centuries
10. The globe is heating up
11. Is it a big difference? Let’s consider this
12.
Temperature change in last 100 thousand years4
2
0
-2
-4
-6
-8
-10
13. Ice is rapidly disappearing
14. Mountains are melting
15. Coral reefs
16. Paris Climate Summit
The heads of state or government of more than100 countries