Based on expected operating performance and current coal prices Glencore expects to pay only $230 million for the combined 66.6% stake.

Researchers at the Georgia Institute of Technology are using an ionic liquid to extract rare earth elements from coal fly ash.

The International Renewable Energy Agency reports that, in some cases, new renewable power generation capacity has electricity costs lower than the cheapest source of new fossil fuel‑fired capacity.

More than 40 of the world's 250 biggest corporate emitters - or 16% - are only just starting to assess their emissions, report shows.