I watched Extinction Rebellion’s Roger Hallum talk about climate change for the first 30 minutes of this video. I’m trying to find time to analyse his claims that we’ve already locked in a 2.2 degree rise in temperature. The way Roger emphasises that climate breakdown will happen very quickly through food shortages haunts me and makes me want to create contingencies.
On the other hand, XR could be using more extreme scientific reports to back up their claims, with an aim to getting people agitated and involved in their movement. I am firmly of the mind that creating a panic around the situation although will stimulate a rebellion may well make people complacent about taking personal action.
I want to dig into the facts on this talk to understand whether he’s right. Here are the big pieces of his argument:
- There will be no more arctic sea ice in the summer by 2022.
- The rise in temperature since pre-industry is 1.2 degrees (I found 0.85 from IPCC)
- Carbon has a delay affect in terms of global warming and therefore we’ve already locked in another 0.6 degrees.
- When we stop producing emissions the particulate matter in the air will result in less reflection of the suns rays resulting in another locked in 0.6 degree rise in temperature.
Has anyone looked into these matters and what is your interpretation?