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Ayup! Tends to do that every summer.

¦ Desert (Earth has been warming and cooling without human help for millions of years.) Dave

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The Arctic, Antarctic, are warming much faster that the rest of the earth.

I agree that the earth warms and cools over 1000s of years... Usually that is because of a cataclysmic event such as a super volcano or a meteor strike. The effects of those can be immediate but short duration effects.

This warming trend is caused by build up of green house gases, the buffers of the ocean absorbing CO2 and the accumulated ice are getting at their limit. The permafrost is beginning to melt which if it melt completely will release enough CO2 and methane to .... we do not know what it will do.... But it will be hot, sea levels will rise dramatically, mass migrations of people and animals will occur.
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