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Arctic's Melting Permafrost Will Cost Nearly $70 Trillion, Study Finds
By Jake Johnson
According to the new research, published in the journal Nature Communications, melting permafrost caused by accelerating Arctic warming would add close to $70 trillion to the overall economic impact of climate change if the planet warms by 3°C by 2100.
Even if action is taken to limit warming to 1.5°C by the end of the century, the research found melting permafrost would still add $24.8 trillion to overall climate costs.
Dmitry Yumashev of Lancaster University, the lead author of the study, told National Geographic that melting permafrost and sea ice "are two known tipping elements in the climate system" that could trigger a cycle of unstoppable global warming.
In an interview with the Guardian, Yumashev called his study's results "disheartening," but said nations of the world have the technological capacity to confront the crisis.
What's needed, he said, is urgency and political will.
"Even at 1.5°C to 2°C [warming], there are impacts and costs due to thawing permafrost. But they are considerably lower for these scenarios compared to business as usual," said Yumashev. "We have the technology and policy instruments to limit the warming but we are not moving fast enough."
Kevin Schaefer of the National Snow and Ice Data Centre in Boulder, Colorado—a co-author of the study—echoed Yumashev's warning.
"With climate change we're conducting a high-risk experiment where we don't know what is coming," Schaefer told National Geographic. "The most important thing to remember about our study is the greater the warming, the stronger the feedbacks and the higher the costs to society."
As National Geographic reported, the "$25 to $70 trillion cost of Arctic warming adds four to six percent to the total cost of climate change—which is estimated to reach $1,390 trillion by the year 2300 if emissions cuts are not better than the Paris Agreement. However, the costs of the current business-as-usual path could be more than $2,000 trillion."
Yumashev expressed some relief that his research found the projected economic impact of melting permafrost was lower than the worst-case scenario predicted by previous estimates.
But, as Yumashev told the Guardian, "We still have a time bomb."
Reposted with permission from our media associate Common Dreams
EcoWatch Daily Newsletter
By Jared Kaufman
Eating a better diet has been linked with lower levels of heart disease, stroke and type 2 diabetes. But unfortunately 821 million people — about 1 in 9 worldwide — face hunger, and roughly 2 billion people worldwide are overweight or obese, according to the U.N. World Health Organization. In addition, food insecurity is associated with even higher health care costs in the U.S., particularly among older people. To help direct worldwide focus toward solving these issues, the U.N. Sustainable Development Goals call for the elimination of hunger, food insecurity and undernutrition by 2030.
mevans / E+ / Getty Images
Calls for Radical Climate Action Grow Louder as NOAA Reports Last Month Was Hottest June Ever Recorded
By Jessica Corbett
As meteorologists warned Thursday that temperatures above 100°F are expected to impact two-thirds of the country this weekend, U.S. government scientists revealed that last month was the hottest June ever recorded — bolstering calls for radical global action on the climate emergency.
By John R. Platt
For years now conservationists have warned that many of Madagascar's iconic lemur species face the risk of extinction due to rampant deforestation, the illegal pet trade and the emerging market for the primates' meat.
Yes, people eat lemurs, and the reasons they do aren't exactly what we might expect.