99.9% of Scientists Agree That Climate Crisis Is Caused by Humans, Study Finds

Rescue crews assist residents in Port Arthur, Texas following Hurricane Harvey.

Rescue crews assist residents in Port Arthur, Texas on Sept. 1 2017 after Hurricane Harvey left a trail of devastation. Climate change worsens extreme weather events. EMILY KASK / AFP via Getty Images

The scientific community’s level of certainty on humans’ causation of climate change is now on par with its agreement on evolution and plate tectonics.

A review of scientific literature, published in Environmental Research Letters, found just 28 papers linked to climate skepticism in its trawl of more than 88,000.

The findings support the IPCC’s declaration in August that the science of human influence on the heating atmosphere is “unequivocal,” and refute the concerted disinformation campaign by fossil fuel interests seeking to sow doubt and uncertainty about their products’ causation of the crisis — the impacts of which are visible around the world.

A UN report released Tuesday warned all of Africa’s glaciers could vanish in the next two decades. Africa is responsible for just 4% of greenhouse gas pollution, but the continent and its people are exceptionally vulnerable to the ravages of the climate crisis. Climate change accelerates glacier melt, intensifies droughts, and worsens extreme precipitation events like those that cause flash flooding.

Meanwhile, on Tuesday: the governor of California expanded a drought emergency to cover the entire state; Indian officials said flooding caused by torrential rain has killed at least 22 people in Uttarakhand state; and a separate UN report said climate change exacerbated the worst flooding to hit South Sudan in almost 60 years.

For a deeper dive:

Scientific consensus: The Guardian; African glaciers: AP, The New York Times, Reuters, The Hill, Axios, CNN, USA Today, The Independent; Newsom declares drought emergency across California: CAL Matters, Los Angeles Times, San Francisco Chronicle, Axios, CNN, USA Today; India: AP; South Sudan: Reuters; Climate Signals background: Glacier and ice sheet melt; Drought; Extreme precipitation increase

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