This was an appendix to Garden Cities and Green Evolutionary Settlements but that’s buried too deep to casually reference. I reproduce it here to show that lifestyles can be affected by a different structure of local finances. I look forward to the Butlins designing Green Evolutionary Settlements to begin the transformation towards more sustainable ways of living.
The report relies on the HadRM3 Regional Climate Model. This may underestimate or omit the effects of certain climate feedbacks which are mentioned on the NERC website:
– reduced sea ice cover – reflecting less of the sun’s heat back out to space, changing ocean circulation patterns
– less carbon dioxide absorption by the oceans
– increased soil respiration
– more forest fires
– melting permafrost
– increased decomposition of wetlands
We need to reduce greenhouse gases in the atmosphere, and we need to do it quickly. The main ones increased by humans are carbon dioxide (CO2), methane (CH4, the main component of natural gas), and nitrous oxide (N2O).
News stories about the Arctic always seem to say either that the Arctic is warming twice as fast as the global average, or that it’s warming nearly twice as fast as the global average. That’s not correct.
Arctic warming is more like three to four times as fast as global warming.
It’s already bad. But when will things get so bad that it is obviously — obviously — the worst problem in the world? How long until we go over the cliff? That depends on how much we’ve heated up already, and how fast we’re getting hotter.
We have already reached dangerous levels. The heat waves throughout the northern hemisphere this summer have cost plenty, to the economy, in human suffering, ill health, even lives lost. The wildfires in California this year were much worse than they would have been without global warming. Just last year we set a new record for the total cost (adjusted for inflation) of billion-dollar climate-related disasters. They cost the U.S. over $300 billion.
As bad as it is already, extremely bad is yet to come. Some say it’ll be when total warming since pre-industrial times reaches 2°C, others say — and I agree with…