The eyes of future generations are on world leaders to take urgent action on climate change, teenage activist Greta Thunberg has told the UN.

A new report says countries must take “unprecedented” action to slash carbon emissions to zero by 2050. Here we look at what countries need to do to keep global temperatures from rising more than 1.5C.

The world faces a "very high risk of severe, widespread and irreversible" impacts from climate change without action to cut emissions, a major international report has warned.

Emily Beament