What is the optimal temperature for the earth? The AGW supporters must believe that we are currently at the optimal temperature, but for a diverse plant life, what is the optimal temperature. I ask because I notice that the most diverse ecology is in the warmest part of the planet (rain forests). 20% 1 Vote

Warming has been demonstrated to have negative effects in oceans in recent years:

Warming Oceans Put Kink in Food Chain, Study Says
http://news.nationalgeographic.com/news/...

Since 2000 the ocean surface temperatures have gradually warmed, and growth rates of the plankton have declined almost in lockstep, Behrenfeld noted.

%26quot;Projection into the future would suggest that as temperatures continue to warm, the climate will continue to suppress biology on a global basis,%26quot; he said.

Warming is forecast to increase the frequency and magnitude of droughts and desertification:

Steven Chu, a Nobel laureate and the director of the Lawrence Berkeley National Laboratory, one of the United States government’s pre-eminent research facilities, remarked that diminished supplies of fresh water might prove a far more serious problem than slowly rising seas. Chu noted that even the most optimistic climate models for the second half of this century suggest that 30 to 70 percent of the snowpack will disappear. “There’s a two-thirds chance there will be a disaster,” Chu said, “and that’s in the best scenario.”
http://www.nytimes.com/2007/10/21/magazi...

The effects may be felt in the United States much sooner than we expect:

http://news.nationalgeographic.com/news/...
There is a 50 percent chance Lake Mead will run dry by 2021 and a 10 percent chance it will run out of usable water by 2014...

%26quot;We were stunned at the magnitude of the problem and how fast it was coming at us,%26quot; said marine physicist Tim Barnett.

%26quot;Make no mistake, this water problem is not a scientific abstraction but rather one that will impact each and every one of us that live in the Southwest,%26quot; he said.
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I%26#039;m conservative too, but I%26#039;m not crazy! 0% 0 Votes

At the best you already know, all your going to get is historical averages from regional/local areas.You will not find any references to a datum.This isn%26#039;t the only problem they have in tropical locations in determining GW much less AGW.The RH/relative humidity screws up the models used to determine co2 iridescent properties.They have difficulty in proving which is the diver and which is a consequence.It just doesn%26#039;t behave like they want it to.Then in the southern Hemisphere they can%26#039;t comprehend the ocean as being one of the driving forces for climate change...that is most of them. 20% 1 Vote

Thank YOU Crazy!!! Finally someone on here with enough brains to know that life thrives in warmth. Life dies at below freezing. I.E. %26quot;Killing Frost%26quot;.

There was a much wider diversity of life when Alaska and Canada was a Rain Forest! 0% 0 Votes

I would like it to be around 80 degrees Fahrenheit all year round, myself. I%26#039;m always too cold! My plants and pets feel the same way. 20% 1 Vote

While we know that the earth%26#039;s mean temp is 14 degC it is impossible to gauge the optimal temp as the sun, moon %26amp; geographical locations on the globe are all inter twined. 0% 0 Votes

the earth is an inanimate object it dose not care but we should.

if you want to farm in the food belt and you dont want food shortages 15degrees is just fine. dont go messing with the thermostat. 0% 0 Votes