A long article steeped in biological and climate data regarding the geological history as we know it. It may sound alarmist, but the reality is that it puts geologic time in comparison to human time in a fascinating way. To put another way, Mothership Earth is a pretty unforgiving and hostile place for long stretches. Human development is hardly a blip in time. Climate science is not my expertise by any stretch, but the article is engrossing nonetheless.