Either infuriating or upsetting how long we have known about this and done nothing.
HN discussion, including some good comments like this:
The time for decisive action was at least a decade ago, but there's no harm in starting now — it just means that the transition to alternative energy sources must be more abrupt and more investment must be allocated to remedial technologies that can work towards undoing at least some portion of the damage we have done to our biosphere.
Let historians and the next generations worry about whose fault it was. It is more important to secure for the next generation a sustainable and habitable future, than it is to look back at past hubris and wonder where it went wrong.