Five years after Paris climate deal, world leaders to hold summit

 The virtual event, co-hosted by the UN, Britain and France, aims to rally momentum and call for greater climate action.

Leaders from around the world are due to attend a day-long Climate Ambition Summit online, where they are due to present the progress they have been making and the plans they have to protect the environment.

The event, which aims to rally momentum and call for greater climate action, falls on the fifth anniversary of the Paris climate agreement when nearly all countries pledged to limit global warming to well below 2 degrees Celsius above 1990 levels.