carbon brief

Permafrost and Wetland Emissions Could Cut 1.5°C Carbon Budget ‘by Five Years’

Permafrost and Wetland Emissions Could Cut 1.5°C Carbon Budget ‘by Five Years’

By Robert McSweeney Emissions of CO2 and methane from wetlands and thawing permafrost as the climate warms could cut the “carbon budget” for the Paris agreement temperature limits by around five years, a new study says. These natural processes are “positive feedbacks”—so called because they release more greenhouse gases as global temperatures rise, thus reinforcing […]

Join our newsletter

The best of EcoWatch, right in your inbox. Sign up for our email newsletter!

    Arctic Sea Ice Hits Second-Lowest Winter Peak on Record

    Arctic Sea Ice Hits Second-Lowest Winter Peak on Record

    By Robert McSweeney Arctic sea ice has experienced its maximum extent for the year, reaching 14.48 million square kilometers (approximately 5.59 million square miles) on March 17—the second smallest in the 39-year satellite record. The provisional data from the National Snow and Ice Data Center (NSIDC) shows the 2018 winter peak only narrowly avoided taking […]

    Solar Geoengineering: Risk of ‘Termination Shock’ Overplayed, Study Says

    Solar Geoengineering: Risk of ‘Termination Shock’ Overplayed, Study Says

    By Robert McSweeney Solar geoengineering, or “solar radiation management” (SRM), is perhaps the most controversial of the different ways of limiting human-caused climate change. A commonly voiced objection to the technique is the risk of “termination shock”—the rapid rebounding of global temperatures if SRM is deployed and then suddenly stopped. But a new research article, […]

    Animals With White Winter Camouflage Could Struggle to Adapt to Climate Change

    Animals With White Winter Camouflage Could Struggle to Adapt to Climate Change

    By Daisy Dunne Animals that turn white in the winter to hide themselves in snowy landscapes could struggle to adapt to climate change, research suggests. A new study finds that declining winter snowfall near the Arctic could have varying effects on the survival of eight mammal species that undergo a seasonal color molt from summer […]

    Small Drones Could Be Better for Climate Than Delivery Trucks, Says Study

    Small Drones Could Be Better for Climate Than Delivery Trucks, Says Study

    By Zeke Hausfather Automated, unmanned drones are poised to revolutionize the package delivery industry, with a number of companies already testing drone-based delivery methods. A new study in Nature Communications looks at the climate impact of a shift from truck-based to drone-based package delivery. It finds that while small drones carrying packages weighing less than […]

    Polar Bears Could Be Struggling to Catch Enough Prey, Study Shows

    Polar Bears Could Be Struggling to Catch Enough Prey, Study Shows

    By Daisy Dunne Polar bears could be failing to hunt enough seals to meet their energy demands, new research suggests. A study tracking the behavior of nine female bears from 2014 to 2016 over the Beaufort Sea found that some of the animals exerted so much energy during the hunting season that they lost up […]