Iceland's glacier guides: Tourism under climate change
Why are so many young Greeks turning to farming?
What will happen to the Irish border after Brexit?
Eden on ice: seed banks in pictures
Sri Lanka races to rescue flood victims as toll rises
Sea levels are rising at triple the pace since 1990, find scientists
Call to raise retirement age to at least 70
Scientists warn US coral reefs are on course to disappear within decades
Africa is not poor, we are stealing its wealth
UK achieves solar power record as temperatures soar
Extra layer of tectonic plates discovered within Earth's mantle
The great London property squeeze