Agency’s move could violate federal environmental laws
A little more than a year after determining that greenhouse gas emissions from aircraft are a threat to public health, the EPA has stopped working on developing new standards for the air industry.
That’s not surprising, given that the Trump administration has sought to undermine nearly every rule set to limit heat-trapping pollution, but environmental advocates with the Center for Biological Diversity want to know more about the latest step backward by the EPA. Continue reading “EPA stops work on airline emissions standards”→
Study says ancient extreme global warming event was caused by C02 buildup from massive eruptions
The role of volcanoes on Earth’s climate is complex. It’s well known that aerosol particles from eruptions like Mt. St. Helens can cool temperatures by blocking a small part of the sun’s energy, but a new study suggests that an extreme global warming event about 56 million years ago was caused by massive volcanic C02 emissions.
The research, led by the University of Southampton found evidence that atmospheric C02 doubled within a relatively short period of time, on the geological scale, resulting in a global temperature spike that drove mass extinctions. The eruptions happened during formation of the Atlantic Ocean, according to the study published in the journal Nature. Continue reading “Can volcanoes overheat the Earth?”→
It’s highly unlikely Earth would have seen a three-year run of record global temperatures without its blanket of human-caused greenhouse gases, scientists concluded in a new study that tried to pin down the relationship between record warmth and human-caused global warming.
Without the warming effect of carbon dioxide, methane and other heat-trapping pollutants, there’s only a 0.03 percent chance that there would be three consecutive years of record temperatures; when the warming effects of greenhouse gases are added into the equatio, the odds of three consecutive record-breaking years happening any time since 2000 rises to as high as 50 percent, according to the new study. Continue reading “We’re losing the global warming poker game”→
Can the Colorado-based ski company lead the industry to a sustainable future?
In what may be a game-changer for the ski industry, Vail Resorts has announced that it wants to cut greenhouse gas emissions from its operations to zero by 2030, a goal even more ambitious than the global targets of the 2015 Paris climate agreement.
New research focuses on biophysical impacts of climate change
Vegetation plays a key role in the climate change equation, with a recent study showing that vegetation density has substantial climate impacts. According to the research by the European Union’s Joint Research Center, the findings show that vegetation has a warming effect in cold areas and cooling effect in warm areas.
Figuring out the net effect would help develop more integrated and effective climate mitigation and adaptation strategies. The puzzle is complex. Increasing greenhouse gases spur vegetation growth, but the overall effects at the global level are not clear. The new study explores how changes in leaf area (a measure of vegetation density) affect local climate. Continue reading “Increased greening amplifies global warming in boreal zones”→
Ice age ocean current disruptions linked with greenhouse gas changes
Scientists say they’ve discovered another huge climate warning sign in the Arctic. Past increases in CO2 levels in the air drove ocean currents to a tipping point had a big impact on hemispheric weather patterns.
Many of the previously existing pages on climate science, greenhouse gases and global warming impacts are no longer available at the current EPA website.
By Bob Berwyn
Continuing its Orwellian policies of trying to create an alternative, fact-free reality, the Trump administration has started to remove climate-related information from the EPA website. As of Friday, April 28, a Google search for EPA climate information leads to a page-update notice, including a statement from a politically appointed spokesperson saying,” “We want to eliminate confusion by removing outdated language first and making room to discuss how we’re protecting the environment and human health by partnering with states and working within the law.” Continue reading “EPA removes web pages with climate change information”→