Page 28 - TOIEC-Advanced-Part-1
P. 28

TOIEC Speaking
       Part 1 7

























                  Global warming is the increase in the average



                  temperature of the Earth's near surface air and


                  oceans in recent decades and its projected


                  continuation.


                  Increase of gas concentration leads to warming of


                  the surface and lower atmosphere by increasing the


                  greenhouse effect.


                  Remaining scientific uncertainties include the exact


                  degree of climate change expected in the future.
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