Alleged heat allegedly may spark world food crisis

Half the world's population could face climate-induced food crisis by 2100, a new report by US scientists warns.

Rapid warming is likely to reduce crop yields in the tropics and subtropics, according to Prof David Battisti of Washington University in Seattle.

The most extreme summers of the last century will become the norm, he calculates, using 23 climate models.

Al Fin: Not Just Your Imagination, It Really Is Getting Cold

...The new, re-written evolutionary history of diatoms may indeed shine an important light on our present climate. But perhaps the lesson to be taken from the study is that diatoms thrive in warmer water. As climate and the oceans grow colder, diatoms are unable to thrive as well and reproduce as quickly. Correlation does not equal causation.