Read here. Global warming alarmists and IPCC Climategate scientists predict all sorts of evil doings because of increased temperatures. A very prominent prediction made to frighten the gullible and the ignorant (liberal/progressives, MSM reporters, Hollywood celebrities, etc.) is that "warming" will have negative impacts on food production. Chinese scientist decided to conduct scientific research to determine the validity of this IPCC alarmist claim.
The Chinese research concluded that in the case of wheat, its production increased from 2.5%-6.0% depending on the actual warming conditions, just the opposite of the 5-10% production decrease predicted by climate models and experts.
"...the Chinese researchers [Xiao et al.] say it has been predicted that "the average temperature in the semiarid northwest portion of China in 2050 will be 2.2°C higher than it was in 2002," and they report that based on the observed results of their study, this increase in temperature "will lead to a significant change in the growth stages and water use of winter wheat," such that "crop yields at both high and low altitudes will likely increase," by 2.6% at low altitudes and 6.0% at high altitudes.....Even without the benefits of the aerial fertilization effect and the anti-transpiration effect of the ongoing rise in the air's CO2 content, the increase in temperature that is predicted by climate models for the year 2050, if it ever comes to pass, will likely lead to increases in winter wheat production in the northwestern part of China, not the decreases that climate alarmists routinely predict." [Xiao, G., Zhang, Q., Li, Y., Wang, R., Yao, Y., Zhao, H. and Bai, H. 2010]