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A heat wave can be lethal – and researchers have now counted the ways they can kill. Humans may have only themselves to blame.

The UN expects a world 3oC warmer by 2100, even if countries cut their greenhouse gas emissions as they promised in 2015.

Natural evaporation could provide most of the electricity used by the US and also save about one fifth of the water it uses, scientists believe.

Tropical forests release more carbon than they absorb, and the level of livestock emissions has been underestimated – new findings challenge climate assumptions.

With sufficient investment and strategic deployment, carbon dioxide removal and storage can play a key role in keeping global warming to a level we can live with.

As temperatures rise it may become too hot to fly, with aircraft likelier to be grounded, and more passengers more likely to lose their seats.

Subsidies may be the least efficient and most expensive way of reducing greenhouse gas (GHG) emissions.

As the seas rise, US cities can expect varied flood risks: some will have more of the worst floods, others more frequent familiar inundations.