These posts include a brief mention of a number of news items relating to climate change. They don’t preclude treating any of these topics at more length in a separate post.
They can also serve as an open thread so that we can keep each other informed on important climate news.
Garnaut Update Paper 5: The science of climate change
Garnaut’s series of update papers has now reached Update Paper 5: The science of climate change. This is worth a longer look, but suffice it to say here that the sense of urgency has grown considerably.
- Observable trends seem to be running ahead of predictions.
- The 2C limit looks high and may in fact represent the boundary between dangerous climate change and extremely dangerous climate change.
- 450 ppm looks high, but we are going to shoot through it.
- Garnaut has picked up on the “emissions budget” approach I have been banging on about. On present trends we (the world) will use up our remaining budget of allowable emissions in a couple of decades.