Global warming is said to increase the average temperature of
the Earth's surface, enough to cause climatic change. The
increase in greenhouse gases such as carbon dioxide is seen as
the important factor. The rise in their levels in the atmosphere
is caused by human activities such as deforestation, carbon
dioxide combustion, etc. Global surface temperature increased
0.74 ± 0.18 °C (1.33 ± 0.32 °F) during the last century. Results
from our forum ... that food ran out- they died, without
damaging all other life on Earth. Global warming is caused by
the heat that man produces by the use of artificial energy and
by the ... See entire post