My reaction: Part of our problem. We cant seem to grasp the meaning of “unprecedented”, which is a problem when we’re the problem.

Each summer, CO2 declines as plants grow. In the winter, CO2 rises.

Problem is, plants can’t keep up with humanity. In the next few months, CO2 will reach a new all-time high. Again.

We’ve left the predictable zone of the past 800,000+ years. This is a new era of Earth history. pic.twitter.com/jM0cGe0xiy

— Eric Holthaus (@EricHolthaus) January 13, 2019