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CLIMATE CHANGE (Evidence of climate change (Carbon Dioxide levels, Global…
CLIMATE CHANGE 
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As CO2 levels rise, so does the average global temperature
Key Findings
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CO2 is at an unprecedented level
not seen for at least the last 800,000 years
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Over the past two decades, the Greenland
and Antarctic ice sheets have been melting
and glaciers have receded in most parts of the wold
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Climate Change by tree rings