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Two groups want to put focus on carbon credits from urban forests
National Public Radio discusses urban carbon credit work. Lookout Mountain Conservancy is participating in this effort.
“We know trees can help address climate change. A forest sucks carbon dioxide from the atmosphere. That can be sold as a carbon credit to companies looking to offset their environmental impact. But the way those credits are calculated has long been scrutinized. And two groups want to put focus on urban forests. Bellamy Pailthorp of KNKX explains…”
As Congress funds high-tech climate solutions, it also bets on a low-tech one: nature
[B]eyond those headline-making investments, the legislation acknowledges a less-heralded but essential part of the effort to combat climate change: nature. Or, more precisely, that given a chance, nature can be a profound ally in the fight against climate change…
Climate patterns thousands of miles away affect US bird migration
The scientists analyzed 23 years of bird migration data collected via NOAA’s Next Generation Radar system — a network of 143 radar stations across the continental U.S. — to determine the variability in the birds’ arrival times each spring. This is where they made their first discovery: the U.S. could be divided into two regions, east and west, each with a distinct pattern of variability in bird arrival times…
Western forests, snowpack, and wildfires appear trapped in a vicious climate cycle
A new study probes how extreme 2020 wildfires affected the water cycle in key mountain forests that store water in the form of late-melting snow.
The surveys, up at about 10,000 feet in the Rocky Mountains west of Fort Collins, were part of a rapid response science assessment to measure just how much the extreme 2020 wildfire season in the West disrupted the water-snow cycle in the critical late-snowmelt zone which serves as a huge natural reservoir…
Climate change drives rapid decadal acidification in the Arctic Ocean from 1994 to 2020
The Arctic is warming at a rate faster than any comparable region on Earth, with a consequently rapid loss of sea ice there. Qi et al. found that this sea ice loss is causing more uptake of atmospheric carbon dioxide by surface water and driving rapid acidification of the western Arctic Ocean, at a rate three to four times higher than that of the other ocean basins. They attribute this finding to melt-driven addition of freshwater and the resulting changes in seawater chemistry.
Arctic Ocean acidifying up to four times as fast as other oceans, study finds
Acidification of the western Arctic Ocean is happening three to four times faster than in other ocean basins, a new study has found.
The ocean, which absorbs a third of all of the carbon dioxide in the atmosphere, has grown more acidic because of fossil fuel use. Rapid loss of sea ice in the Arctic region over the past three decades has accelerated the rate of long-term acidification, according to the study, published in Science…
Saving Our Swamps [Letter in the New Yorker Magazine]
Here you will find a short letter submitted by the land trust’s executive director, under the heading “Letters respond to Annie Proulx’s piece about swamps” (and beavers as part of the climate solution):
The dewatering of North America that Proulx describes was underway well before the nineteenth century, when westward expansionists began cutting down forests and farmers began draining and tilling fields. By the time those people were “reclaiming” land for their use, fur traders had been wreaking havoc on our wetlands for almost two hundred years, through the commodification of beavers…
Foresters hope ‘assisted migration’ will preserve landscapes as the climate changes
“Thinking about actively moving species around is a little, well a lot uncomfortable for us,” acknowledges Abe Miller-Rushing, the science coordinator for Acadia National Park in Maine. “What might be the kind of unintended consequences? What diseases might we unintentionally move around if we move species around?”
He says, historically, the Parks Service has preferred hands-off management and modeled restorations on past conditions. In Acadia though, he noted, not intervening as warming takes place could mean the park’s iconic evergreen forests get replaced by shrubland, dominated by invasive bushes…
How is the jet stream connected to simultaneous heat waves across the globe?
“As often happens in the atmosphere, it is connected: if we see an extreme event in one place, it can be connected to extreme events in another,” said Stephen Belcher, chief scientist at the U.K. Met Office. “The Met Office forecasters are looking very, very closely at this wavenumber 5 pattern to see how long it persists,” he added…
Study shows 90% of marine species at risk of extinction in 78 years if greenhouse gas emissions are not curbed
Greenhouse gas emissions impact the world’s climate in two ways. They raise the temperature of the atmosphere (and by extension, Earth’s surfaces and bodies of water) by holding in heat, and in the case of CO2 emissions, they make water more acidic, like carbonated soft drinks…