AFP: Climate change could reduce key harvests in China by a fifth if the gloomiest scenarios prove true, according to a study on Wednesday. Publishing in the journal Nature, a team of Chinese scientists say China’s climate “has clearly warmed” over the past half century, gaining 1.2 degrees Celsius (2.2 degrees Fahrenheit) since 1960. The hotspots were northeastern China with a warming trend of 0.36 C (0.65 F) per decade, and Inner Mongolia, with a warming of 0.4 C (0.7 F) per …