At least 85 percent of the world’s population has been affected by human-induced climate change-- new study

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At least 85 percent of the world’s population has been affected by human-induced climate change-- new study

Tue, 2021-10-12 12:22 — mike kraft

At least 85 percent of the world’s population has been affected by human-induced climate change, new study shows Researchers used machine learning to analyze more than 100,000 studies of weather events and found that four-fifths of the world’s land area has suffered impacts linked to global warming. Washington Post

At least 85 percent of the global population has experienced weather events made worse by climate change, according to research published Monday in the journal Nature Climate Change.

After using machine learning to analyze and map more than 100,000 studies of events that could be linked to global warming, researchers paired the analysis with a well-established data set of temperature and precipitation shifts caused by fossil fuel use and other sources of carbon emissions.

These combined findings — which focused on events such as crop failures, floods and heat waves — allowed scientists to make a solid link between escalating extremes and human activities. They concluded that global warming has affected 80 percent of the world’s land area.

“We have a huge evidence base now that documents how climate change is affecting our societies and our ecosystems,” said lead author Max Callaghan, a researcher at the Mercator Research Institute on Global Commons and Climate Change in Germany.

The study provides hard numbers to back up the lived experiences of people from New York City to South Sudan. “Climate change,” Callaghan said, “is visible and noticeable almost everywhere in the world.”

Humans have pushed the climate into ‘unprecedented’ territory, landmark U.N. report finds

The findings come amid a major push to get countries to commit to more ambitious climate goals ahead of a United Nations summit in Glasgow, Scotland, next month. Research shows that existing pledges will put the planet on track to heat up about 2.7 degrees Celsius (4.9 degrees Fahrenheit) by the end of the century — a level of warming that would lead to drastic food and water shortages, deadly weather disasters, and catastrophic ecosystem collapse....

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