The UK's official advisers have issued a sombre assessment of government plans to hold climate change at a safe level.

Four scientists are awarded the 2016 World Food Prize for crop work that delivers health benefits in developing nations.

Banning the cooling gases currently used in refrigeration and air conditioning could save half a degree of global warming if a deal can be agreed in Rwanda.

Monitoring wild birds on their long migrations may provide early warning of bird flu outbreaks, say scientists.