Rachel Cleetus, the policy director and lead economist of the climate and energy program for the Union of Concerned Scientists, joined Cheddar to break down some of the key goals from the COP26 summit and why leaders must focus on the science of climate change instead of getting bogged down by petty politics and the fossil fuel industry. "The main thing they have to do, make sure we're cutting our emissions sharply within this decade because the science shows that we have to cut global emissions in half by 2030 if we're going to meet our goals of averting some of the most catastrophic impacts of climate change," she said.