Alaska makes up about 18 percent of the total U.S. land area but accounts for about 35 percent of the total carbon stock. The future of that carbon has big implications for global climate. If it’s released quickly, it could drive up global temperatures more than expected. And the carbon stored in high latitude ecosystems is considered to be vulnerable to climate change because of global warming. Continue reading “Climate: USGS measures Alaska land carbon stock”→
Study shows how changing ocean chemistry slows life cycle
Ocean acidification could take a bite out of the economically important Dungeness crab fishery along the Pacific Northwest coast. As the oceans absorb more CO2 from the atmosphere, the increasingly corrosive water is likely slow development and reduce survival of the crab’s larval stages, according to new research by the NOAA Fisheries Northwest Fisheries Science Center in Seattle.
Ocean acidification is one of the most serious effects of increasing CO2 emissions from fossil fuel combustion. Based on what we know about emissions trends, the average pH of surface waters off the Pacific Northwest Coast is expected to drop to about 7.8, and even more when periodic upwelling carries deep water to the surface. Acidification has already been found to slow coral growth, impair shark feeding, and speed the spread of invasive species, among other impacts.
The study, recently published in the journal Marine Biology, shows that the crab larvae hatched at the same rate regardless of pH, but those that hatched at lower levels showed signs of slowed development. The researchers suggested that the lower pH may reduce the metabolic rate of embryos. That could extend their vulnerable larval period, or could jeopardize the timing of their development in relation to key food sources, the scientists said. Continue reading “Ocean acidification puts Dungeness crab fishery at risk”→
As part of a global series of protests against the continued burning of fossil fuels, hundreds of Colorado activists gathered this week in Denver to protest a Bureau of Land Management oil and gas lease auction at the Holiday Inn in Lakewood.
Organizers counted about 300 people at the May 12 rally, who demonstrated with signs and banners and tried to interrupt the auction of new oil and gas leases as part of the larger #keepitintheground movement. The goal is to prevent the catastrophic consequences of unchecked global warming, including deadly heatwaves, droughts, forest fires, water shortages and invasive diseases. Continue reading “Fossil fuels: ‘Enough is enough’”→
Legal challenge seeks to hasten the end of the fossil fuel era in the Southwest
A coalition of environmental and community groups is challenging the federal government’s decision to extend operations at the coal-fired Four Corners Power Plant for another 25 years. In a new lawsuit, the activists say the approval lacked an assessment of clean energy alternatives.
If there’s any silver lining to the global warming story these days, it’s that fossil fuel company stock prices are dropping even faster than global temperatures are going up. Investors aren’t buying the climate-denying baloney being peddled by the coal kings and oil barons anymore, as evidenced by this week’s bankruptcy announcement by Peabody Energy — the world’s biggest coal company.