Time ticks away at wild bison genetic diversity

Evidence is mounting that wild North American bison are gradually shedding their genetic diversity across many of the isolated herds overseen by the U.S. government, weakening future resilience against disease and climate ...

Asia must quit 'coal addiction': UN chief

The UN chief on Saturday warned Asia to quit its "addiction" to coal, as climate change threatens hundreds of millions of people vulnerable to rising sea levels across the region.

New cocoa deals help peasant farmers, but not enough

The willingness of some multinational firms to pay a cost-of-living bonus for African cocoa planters is welcome but will not save many farmers from grinding poverty, industry sources say.

Indian capital Delhi gasps under choking smog

India's capital New Delhi was enveloped in heavy, toxic smog Sunday—the worst levels in recent years—with hundreds of flights diverted or delayed as politicians blamed each other for failing to tackle the crisis.