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Flood surge following Hurricane Florence in Horry County, SC on Sept. 25. U.S. Army National Guard / Staff Sgt. Roberto Di Giovine

By Howard J. Herzog

In a much-anticipated report, the Intergovernmental Panel on Climate Change (IPCC) said the world will need to take dramatic and drastic steps to avoid the catastrophic effects of climate change.

Featured prominently in the report is a discussion of a range of techniques for removing carbon dioxide from the air, called Carbon Dioxide Removal (CDR) technologies or negative emissions technologies (NETs). The IPCC said the world would need to rely significantly on these techniques to avoid increasing Earth's temperatures above 1.5 degrees Celsius, or 2.7 degrees Fahrenheit, compared to pre-industrial levels.

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Erosion in a Derbyshire, UK valley by the northern escarpment of Kinder Scout. Stephen Thompson / Bend in the River Ashop / CC BY-SA 2.0

By Daisy Dunne

The UK could cut its emissions to "net-zero" within the next three decades by stepping up investment into technologies that can remove CO2 from the atmosphere, a report finds.

However, such methods, which are known collectively as "negative emissions technologies" (NETs), would only be effective if paired with drastic efforts to cut the UK's current rate of emissions, the findings suggest.

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Roots of mangrove trees, Para State, Brazil. Ricardo Lima / Getty Images

By Daisy Dunne

The vast mangroves of the Amazon store twice as much carbon per hectare as the region's tropical forests, new research shows.

The relatively understudied ecosystem also stores 10 times more carbon than Amazon savannahs—a type of grassy plain with sparsely populated trees, according to the study.

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