Tens of thousands of people marched in Paris and in other major cities across France on Saturday demanding meaningful action on climate change. Thousands more marched in Geneva, Switzerland. This is Greenpeace Switzerland spokesperson Mathias Schlegel.

Mathias Schlegel: “Each time the climate gets warmer, even by one-tenth of a degree, it has a lot of consequences. For example, if the climate gets warmer by just 1.5 degrees, we can save certain glaciers in Switzerland; if it gets warmer by 2 degrees, we can’t save any. If the climate gets warmer by just 1.5 degrees, we can save up to a third of the oceans’ coral reefs; if it gets warmer by 2 degrees, we can’t.”