Embattled climate scientists working in 13 various US government agencies threw down the gauntlet before the Trump administration by releasing an over 600-page report on climate change in the US
“With significant reductions in emissions of greenhouse gases, the global annually averaged temperature rise could be limited to 3.6 degrees Fahrenheit or less. Without major reductions in these emissions, the increase in annual average global temperatures relative to pre-industrial times could reach 9 degrees Fahrenheit or more by the end of this century.”
Think about that last number. Imagine average temperatures where you live in summer rising by 9 degrees. This year, the temperature in Phoenix has been hitting 120. Adding nine degrees to that would make it a fatal risk to go outside for most people, even briefly. Even in the Northeast, it would mean many 100+ degree days in summer, which would preclude outdoor work like construction, roadwork, yard work or farming.
It’s getting so bad that it may become fatal to walk outside in Phoenix. Arizona!