By Sarah (Steve) Mosko
Appeared: E-The Environmental Magazine, 17-Oct, 2018.
Mankind has only 12 years left to make unprecedented cuts in greenhouse gas (GHG) emissions if we want to stave off unimaginably catastrophic effects of runaway global warming. This is the warning detailed in October’s report from the United Nation’s Intergovernmental Panel on Climate Change (IPCC), the recognized global climate authority which represents the investigations of hundreds of climate scientists and 195 participating nations.
A 2.0 degree Celsius average global temperature rise above pre-industrial levels was previously viewed by the IPCC as the tipping point beyond which global warming would spiral out of control with incomprehensibly negative consequences for humanity and the planet. We are fully half way to this cut-off, but more to the point is the revised projection by the IPCC that the worst effects will emerge with a smaller temperature rise of just 1.5 degrees Celsius (2.7 degrees Fahrenheit). Preventing the 1.5 degree rise necessitates, by 2030, a 45 percent reduction in GHG emissions compared to 2010 levels, with “net zero emissions by 2050” which means all emissions need be balanced by removal of an equivalent amount from the air.
If GHG emissions continue instead at the current rate, the 1.5 degree mark will be reached in 2040, producing environmental havoc that effectively ensures the end of civilization as we know it. Picture a future defined by poverty, food shortages, coastal flooding, mass migrations, ferocious storms, bigger and more intense wildfires, plus unrelenting heat that makes parts of the world unlivable.
Hearing this, Americans should be screaming from the rooftops, demanding to know how our government will prevent this very real existential threat to our own and our children’s future.