hi frenz.do u all know bout global warming? actually global warming is the increasing of the average temprature of the earth near-surface air and oceans since the mid 20th century and itz projected continuation.now day global warming is the big problam for our earth.
ya i'm also know about global warming.do you know the average temprature level of the earth now?global surface temprature increased 0.32f during the last century.
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