By Jessica Corbett
As U.S. President Donald Trump and Russian President Vladimir Putin came together in Helsinki, Finland on Monday for a closely watched summit, Greenpeace activists partnered with a local parish to unfurl two massive banners on the Kallio church's bell tower to call on the leaders to "warm our hearts not our planet."
EcoWatch Daily Newsletter
By Andy Rowell
So the G20 summit is starting in Hamburg in Germany, after a day of angry protests which saw dozens arrested.