One of many preposterous arguments by warmists: With the Earth's average temperature at 59 F., they want us to believe that a few degrees of warming would be a very bad thing for our crops

Food scarcity: the timebomb setting nation against nation | Global development | The Observer

Why can't politicians understand that every 1C above the optimum in the growing season equates to roughly a 10% decline in grain yields? [Warmist Lester Brown] asks.

"Yet if the world fails to address the climate issue, the earth's temperature this century could easily rise by 6C, devastating food supplies."

What Temperature Is Best to Grow Sweet Corn? | eHow.com

Corn grows fastest in daytime temperatures of 93 degrees F, although temperatures anywhere between 85 and 100 degrees result in nearly ideal growth.

What Is the Average Temperature of Earth? | eHow.com

When scientists measure the average temperature of the Earth, they take many readings from the coldest and hottest places before calculating a mean temperature, generally agreed to be 15 degrees C, or 59 degrees F.