Thom Yorke is marching and dancing with us! Come join us! #ClimateMarch #PeoplesMarch pic.twitter.com/tb2VH9U1Ll

— Greenpeace UK (@GreenpeaceUK) November 29, 2015

RT if you stand with @thomyorke for tough action on climate change at #COP21 (it's fake snow) #ClimateMarch pic.twitter.com/FqcosRUrCe

— Greenpeace UK (@GreenpeaceUK) November 29, 2015

Yorke was amongst numerous other high profile artists to sign an open letter to world leaders asking for, amongst other measures, “an ambitious commitment to climate action, starting now, that will limit future global warming to below 2.0°C (3.6 °F) relative to pre-industrial levels”. Other Musicians to sign the petition include Björk, David Bowie, Courtney Barnett, Damon Albarn, Guy Garvey and David Gilmore among many other musicians, artists and authors.

“We are deeply concerned that our global economic and industrial systems are accelerating rates of extinction, desertification and soil depletion, degrading ecosystems, acidifying and littering our rivers and oceans, and resulting in a relentless rise in greenhouse gas emissions driving irreversible climate change,” the letter states. “The outcomes of COP21 and the political decisions taken over the next months will determine many of the long-term conditions that will affect us today and for many generations to come.”

With the recent Paris Attacks threatening the cancellation of many of the COP21 protest events in Paris, Thom Yorke took to Twitter to confirm he would still be performing at the Pathway to Paris gig on the 4th and 5th of December: “Will be in Paris as planned on 4th & 5th December to put pressure on our glorious leaders at #COP21 -now or never!”