All articles tagged with #greenhouse gases
Public health and environmental groups filed a lawsuit against the EPA challenging the repeal of a greenhouse-gas rule that supported climate protections, arguing the rollback undermines emissions controls and public health safeguards.
The next ice age is unlikely to begin for at least 50,000 years, with natural climate cycles and human-induced greenhouse gas emissions delaying its onset significantly, potentially up to 500,000 years in the future.
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.
Global fossil fuel emissions are projected to reach a record high of 38.1 billion tons in 2025, with overall emissions increasing slightly from 2024, although China shows signs of slowing its emissions growth.
Researchers have revived microbes frozen for 40,000 years in Alaskan permafrost, raising concerns that warming temperatures could reactivate these microbes, leading to increased greenhouse gas emissions and further climate warming.
Scientists have revived microbes from 40,000-year-old Alaskan permafrost, which, when active, release carbon dioxide and methane, potentially accelerating climate change as Arctic warming continues and permafrost thaws.
Scientists have reawakened ancient microbes from permafrost dating back to the last ice age, which can become active within months under warmer Arctic summer conditions, potentially releasing significant amounts of CO2 and methane, thus accelerating global warming and permafrost thawing.
Microbes trapped in 40,000-year-old permafrost in Alaska have been reawakened due to thawing, potentially releasing significant greenhouse gases like methane and carbon dioxide as climate change accelerates Arctic melting, with microbes showing increased activity after prolonged warm periods, raising concerns about a feedback loop that could further accelerate global warming.
Scientists discovered that microbes form living electrical networks involving anaerobic methanotrophic archaea and sulfate-reducing bacteria, which work together to consume methane from the ocean floor, potentially reducing greenhouse gas emissions and influencing Earth's systems.
Internal government documents reveal that President Trump’s use of tariffs extended beyond economic interests to include national security goals, such as influencing international efforts on greenhouse gas emissions and trade negotiations with maritime nations.
The Trump administration's proposed budget for 2026 threatens to terminate two NASA satellites, OCO-2 and OCO-3, which monitor atmospheric carbon dioxide and provide critical data for climate science, with OCO-2 potentially being destroyed, raising concerns over the loss of valuable environmental data and insights into natural carbon sinks and emissions.
The EPA plans to reverse its 2009 endangerment finding that classified greenhouse gases as dangerous, potentially ending most US climate regulations, though the proposal is still under review and likely to face legal challenges.
The EPA has proposed to revoke its 'endangerment finding' and weaken or eliminate key vehicle pollution standards, including tailpipe emissions rules, in a move that has been praised by oil and biofuel industries but criticized by environmental advocates. This rollback aims to reduce regulatory burdens on automakers and lower vehicle costs but could lead to increased pollution and climate change impacts, with the proposal subject to public comment and legal challenges.
A Sheffield-based start-up, earth4Earth, has developed eco-friendly bricks that absorb and permanently store carbon dioxide, aiming to reduce the construction industry's environmental impact. The bricks are made using soil from construction sites and a new room-temperature lime process, with plans to move production to the UK to lower carbon emissions. Experts support the innovation but emphasize the need for proof of durability and widespread adoption to truly mitigate construction-related pollution.
Scientists have discovered that the prolonged super greenhouse conditions after the Permian–Triassic mass extinction were caused by the loss of tropical forests, which reduced Earth's ability to absorb carbon dioxide, leading to a sustained hothouse state for about five million years. This research highlights the critical role of tropical biomes in maintaining climate stability and the potential consequences of their loss today.