We can think of this in two ways: We are, at once, living in the previous generation’s worst-case scenario and our children’s chance of a lifetime. With catastrophic weather all around us, we are continuing to make the problem worse. In 2017, the world emitted the most greenhouse gases in a single year in human history. Yet with each new day, there remains ample opportunity to steer humanity on a radically different path that could still greatly limit the impact of much worse climate change on every living species for countless generations.
We have entered the heart of climate change’s period of consequences. That is not cause for despair or remorse; it is a time for courageous action.