Starting right now, we, all us humans on the planet, have a short window of opportunity to solve global warming, keep global average temperature rise below 3.6° F (2°C), and avoid more and worse instances of the kind of extreme weather disasters that have recently pummeled every region of the US (and the world). To accomplish this, total emissions must peak and rapidly decline into negative territory. Impossible, you say? Amazingly enough, it can be—and is being—done, using currently available technologies. The general consensus is that success will come through leaving fossil fuels in the ground, switching to renewable energy, and doing everything possible to reduce emissions in a variety of ways.