Are we really 2-degrees from disaster?
In “As Climate Change Worsens, Scientists Feel Increasing Pressure to Speak Out,” Inside Climate News reports,
The scientists also agreed that—based on what’s now being observed as the earth responds to high levels of atmospheric CO2 and other greenhouse gases—what constitutes a dangerous level of global warming is likely less than what models have anticipated. James Hansen of the NASA Goddard Institute for Space Studies explained that scientists who are examining the fossil record for clues about dramatic ecosystem and climate shifts in previous geologic eras are finding evidence that current changes are happening faster than any comparable changes the earth has previously experienced.
“We will get a very different climate with an increase of 2 degrees Celsius, and that’s what international organizations are setting as a goal,” Hansen said. “A 2 degrees Celsius increase is actually a prescription for disaster.” [Emphasis added]
Climategate’s Phil Jones too thinks that 2 degrees is too much climate change — but then he admitted in Climategate 2.0 the science behind his thinking:
I think [the 2-degree limit] is plucked out of thin air.