Several old fossil fuel wells in the north of England were going to be used for fracking. Instead, they may now be a template for the UK's geothermal industry.

Some species of birds like geese save energy by flying in close formation. Airliners could use a similar trick to burn less fuel.

US President Donald Trump says that wind farms harm birds and whales. Scientists weigh wind power's impacts on wildlife against those of oil and gas.

The riches thought to lie beneath Greenland's icy terrain have been coveted for more than a century. But how easy are they to access, and will climate change make any difference?

Global temperatures rose and extreme weather ramped up, but there were also some significant breakthroughs for the climate this year.

Should rich countries and fossil fuel companies pay for the climate losses and damages they have caused?

As countries negotiate a new global goal to raise climate cash, these five charts show why discussions are so fraught.

China produces more clean energy than any other country. Now it's rolling out an ultra-high-voltage grid to match – will its strategy of going big pay off?