2018/09/17: in recent years, research has made it increasingly clear that — after an 11,000 year period of relative stability — the climate has become destabilized by human emissions of carbon pollution, putting us on a path towards steadily rising temperatures throughout the century.
In this business-as-usual case — without more drastic action taken to cut the world’s greenhouse gas emissions — we will continue warming more than 50 times as fast as the planet was (slightly) cooling in the past 5000 years.
And it’s not just global temperatures that are being destabilized, so are sea levels. That’s clear from the Trump administration’s own November 2017 National Climate Assessment.
This “authoritative assessment of the science of climate change” explains that sea levels do not stop rising this century. Even worse, if the country’s do-little climate policies continue — or, worse, actually get rolled back as they are under Trump — then the rate of sea level rise will actually speed up.
our current climate is near the very edge of stability, according to a major new study by 16 leading climate scientists.
We are pushing the planet toward an irreversible “Hothouse Earth” — catastrophic warming of 9°F or more with ultimate sea level rise of up to 200 feet. And that study warns we are much closer to the “point of no return” than most people realize.