Advocating for the Future

摘要

Carbon dioxide levels in the atmosphere are higher than they have been in three million years. Human influence on the climate is so great that we are probably moving into a new geological epoch, the Anthropocene. The effects of climate change - visible only to trained observers and in computer models several decades ago - are now apparent everywhere. And the best available science tells us we need to reduce greenhouse gas emissions to net zero or below across the globe by 2050, if not earlier, to avoid the worst effects of climate disruption. We have less than thirty years.