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.