23 nations have signed a pledge to step up their ambition of their own climate action by 2020. The joint declaration, issued alongside a week of key ministerial meetings on climate change happening in Europe, is titled Declaration for Ambition.

“We commit to exploring the possibilities for stepping up our own ambition,” it says, while pointing to the upcoming UN Climate Summit as “the biggest political opportunity” to do so. That meeting, scheduled for September 2019, will be one of the largest gathering of world leaders to discuss climate change since the Paris Agreement was signed in 2015.

Read the statement here.