How many years until we must act on climate? Zero, say these climate thinkers

We asked a panelist of experts on when we need to start changing our economies and ways of consuming and producing. Their answer: now

We have zero years before climate and ecological breakdown, because it's already here. We have zero years left to procrastinate. The longer we wait to act, the worse the floods, fires, droughts, famines and heatwaves will get.