For 421 straight months, Earth has been warmer than average.
January 2020 continued where 2019 left off, as the planet's relentless, long-term heating trend — stoked by skyrocketing atmospheric carbon dioxide concentrations — resulted in the warmest global January on record, according to the European Union's Copernicus Climate Change Service.
January 2020 squeaked past January 2016 by just fractions of a degree (0.03 Celsius), but it's really the long-term heating trend that's important, not any individual month. Overall, 2019 was the second hottest year on record, 19 of the last 20 years are now the warmest on record, and high-temperature records now absolutely dominate low-temperature records.
There are dozens of climate models, and for decades they’ve agreed on what it would take to heat the planet by about 3Celsius. It’s an outcome that would be disastrous—flooded cities, agricultural failures, deadly heat—but there’s been a grim steadiness in the consensus among these complicated climate simulations.
Then last year, unnoticed in plain view, some of the models started running very hot. The scientists who hone these systems used the same assumptions about greenhouse-gas emissions as before and came back with far worse outcomes. Some produced projections in excess of 5C, a nightmare scenario.
I am pretty sure it was the slogan of Bernie Sanders or maybe Ron Paul "It's Happening [now]!" Or something like that. The future is now as they say.
Permafrost hs begun thawing in the Canadian Arctic more than 70 years early because of climate change, according to new research.
A "series of anomalously warm summers” has dramatically accelerated melting rates at three sites despite average annual ground temperatures remaining low. Ponds and hillocks have formed as a result.
It had been thought that the permafrost - ground that remains frozen for at least two years - would remain until at least 2090.
Just weeks before unprecedented wildfires broke out across Australia, killing an estimated 1 billion animals, the prime minister declared that the country faced a terrible threat: environmental protesters.
“A new breed of radical activism is on the march,” Prime Minister Scott Morrison said in a November speech. He added that there was a “place for peaceful protests,” but he wasn’t going to stand for environmentalists obstructing and delaying mining projects or calling for boycotts of banks that finance the country’s coal industry. ADVERTISEMENT
He promised to find a way to “successfully outlaw these indulgent and selfish practices that threaten the livelihoods of fellow Australians.”
But Christianson and his colleagues were not just ice geeks mapping the hidden topography of the planet. They were mapping a future global disaster. As the world warms, determining exactly how quickly ice melts and seas rise may be one of the most important questions of our time. Half the world’s population lives within 50 miles of a coastline. Trillions of dollars of real estate is perched on beaches and clustered in low-lying cities like Miami and New York. A long, slow rise of the waters in the coming decades may be manageable. A more abrupt rise would not be. “If there is going to be a climate catastrophe,” says Ohio State glaciologist Ian Howat, “it’s probably going to start at Thwaites.”
The decade that just ended was by far the hottest ever measured on Earth, capped off by the second-warmest year on record, two U.S. agencies reported Wednesday. And scientists said they see no end to the way man-made climate change keeps shattering records.
That was was the first line of David Wallace-Wells’s horrifying 2017 essay in New York magazine about climate change. It was an attempt to paint a very real picture of our not-too-distant future, a future filled with famines, political chaos, economic collapse, fierce resource competition, and a sun that “cooks us.”
Wallace-Wells has since developed his terrifying essay into an even more terrifying book, titled The Uninhabitable Earth: Life After Warming. And it is a brutal read. Wallace-Wells was criticized in 2017 for being too hyperbolic, too doom-and-gloomy. But as Vox’s David Roberts explained at the time, those criticisms were mostly misplaced.
Wallace-Wells isn’t counseling despair or saying all is lost; he’s merely laying out the alarming facts of what is likely to happen if we don’t radically change course.