Environmental activists staged a protest in support of the Paris climate accord during the One Planet Summit in Boulogne, Paris on Tuesday, the two-year anniversary of the adoption of the historic Paris Agreement. /VCG Photo

People took part in a demonstration outside the Pantheon on the sidelines of the One Planet Summit, holding signs, displaying banners, and hiding under a blue sheet representing oil spills in the oceans. /VCG Photo

More than 100 world leaders have been invited to the One Planet Summit, which aims to promote green projects and provide new funding sources. French President Emmanuel Macron said he hopes this summit will give new momentum in the fight against climate change. /VCG Photo