All articles tagged with #methane
Louisiana researchers measuring a swamp near New Orleans find that microbes in wetlands are releasing methane at rising levels, indicating microbial, not fossil-fuel sources, are driving a growing share of methane emissions and potentially accelerating climate warming through a climate feedback loop.
COVID-19 lockdowns sharply reduced nitrogen oxides, shrinking the hydroxyl radical that normally destroys methane and causing a large methane spike in 2020—about 80% of the rise came from a slower methane sink, with the remaining ~20% from increased ground emissions. Wetlands in tropical Africa and Southeast Asia, boosted by La Niña’s wetter conditions, contributed roughly 30% of the global increase during 2020–2022, marking a ‘clean air paradox’ where cleaner urban air reduces methane sinks and intensifies the need for aggressive anthropogenic methane cuts to curb warming.
The EPA ruled that xAI’s Memphis datacenter illegally used methane-fueled turbines to generate electricity, dismissing a local loophole that allowed portable generators; federal air-quality rules now apply to Colossus 1, where 12 turbines operate under federal oversight after earlier permits for 15, and enforcement actions remain unclear as the NAACP pursues a Clean Air Act suit.
A study published in Nature warns that hydrogen, often seen as a clean energy source, may contribute to climate change by prolonging methane's presence in the atmosphere, thus slightly increasing global temperatures. The rise in hydrogen emissions, mainly from human activities like industrial leaks and fossil fuel use, indirectly enhances warming by reducing atmospheric detergents that break down methane, highlighting the need for a deeper understanding of hydrogen's role in climate dynamics.
Satellites are being used to detect and reduce methane leaks from landfills, with a recent case study in Madrid demonstrating how high-resolution satellite and aircraft data can identify leaks, guide repairs, and improve emissions monitoring, ultimately aiding efforts to combat climate change.
A study from Arizona State University found that methane-producing microbes in the gut can influence how efficiently people extract calories from food, especially fiber, with those having more methane-producing microbes absorbing more calories from high-fiber diets, highlighting the importance of personalized nutrition.
Scientists have discovered that the Arctic Ocean was a major source of greenhouse gases during a past rapid warming event 56 million years ago, involving a switch from methane-consuming microbes that produce bicarbonate to those that produce CO2, potentially contributing to ocean acidification and warming. This historical methane cycle shift could recur today as Arctic warming and oxygen levels change, possibly accelerating climate change.
Researchers have found that during the Paleocene-Eocene Thermal Maximum 56 million years ago, a switch in methane-consuming microbes in the Arctic Ocean led to increased methane release, which contributed to rapid global warming. This historical event provides insights into how similar microbial shifts today could accelerate climate change as Arctic conditions warm and oxygen levels decrease.
Scientists have discovered an alarming increase in methane seeps beneath the Antarctic seabed, which could significantly contribute to global warming and indicate a potential feedback loop, raising concerns about underestimated climate change impacts.
Scientists have discovered over 40 methane seeps in the Ross Sea near Antarctica, indicating a rapid increase in underwater methane release that could significantly impact global warming predictions and marine ecosystems, raising concerns about a potential feedback loop exacerbating climate change.
The flickering blue flames known as will-o'-the-wisps, often mistaken for spirits, are caused by the ignition of methane gases in swamps, though the exact mechanism of ignition remains unknown.
Scientists using NASA's James Webb Space Telescope have detected methane gas on the dwarf planet Makemake, indicating it is a dynamic icy world with possible transient activity or a thin atmosphere, making it only the second trans-Neptunian object after Pluto to have confirmed gas presence.
NASA's James Webb Space Telescope has detected methane gas on the dwarf planet Makemake, suggesting the presence of a thin atmosphere or geological activity, making it only the second trans-Neptunian object after Pluto with confirmed gas. Future observations are needed to determine the exact mechanism behind this volatile activity.
New research explains the increasing gas craters in Siberia as a result of climate change-induced permafrost thawing, which releases methane pockets that can cause spontaneous explosions, raising concerns about future frequency as global temperatures rise.
Microbes play a crucial role in Earth's climate system by influencing greenhouse gases, cloud formation, nutrient cycles, and ice ecosystems. Understanding and working with these invisible organisms could offer new strategies to mitigate climate change, such as reducing methane emissions and enhancing natural processes.