Value for climate

摘要

Saving our skins might be cheaper than we thought. To avoid dangerous climate change, the world needs to boost spending on green energy by $1 trillion a year. That's a lot, but we could cover much of it by using existing subsidies for fossil fuels. Governments have agreed to limit global warming to 2 ℃, because more may be perilous. "We need to drastically transform our energy system," says David McCollum of the International Institute for Applied Systems Analysis in Laxenburg, Austria.