The organizers of the Olympic Games in Paris spent $1.5 billion to clean up the River Seine. The World’s host, Carolyn Beeler, speaks with naturalist and author Sy Montgomery about other efforts to keep rivers clean around the planet.
Environmental activists are demanding the UK government declare a climate and ecological emergency, reduce greenhouse gas emissions to net zero by 2025 and create a citizen’s assembly of members of the public to lead on decisions to address climate change.