Explosive Growth of Fracking in Colorado Sparks Revisions to Air Pollution Rules
With approval from major drilling and fracking companies, Gov. Hickenlooper (D-CO) has proposed a set of regulations to reduce pollution from methane and other dangerous gases leaked by the oil and gas industry. The rules are focused on fracking wells, a mostly unregulated drilling technology that has allowed an unprecedented increase in fossil fuel extraction in Colorado and across the nation.
The proposed regulations address a serious hazard posed by the massive growth of fracking in Colorado. There are more than 51,000 fracking wells in Colorado, most of which have been drilled in the last four years. These wells, which produce both gas and oil, also leak gases like methane, the primary component of natural gas and a potent greenhouse gas. Methane is up to 105 times as powerful as carbon dioxide as a greenhouse pollutant. Scientists have theorized that fugitive emissions of methane from fracking wells could make gas worse than coal pollution for the climate.
Fracking wells also leak volatile organic compounds, which cause asthma, cancer and other severe illness. Oil and gas emissions are the main source of volatile organic compounds in Colorado and the third-largest source of nitrogen oxides. There have been many reported cases of illness from fracking pollution in Colorado since the boom began, causing families to uproot for the sake of the health of their children.
Smog caused by fracking emissions have already sent toxic ozone readings soaring in what was once pristine Rocky Mountain habitat. Ozone-forming air pollution measured along the Colorado Front Range by scientists is up to twice the amount that government regulators have calculated should exist. The researchers pinpoint oil and gas development as the main source.
Studies of fugitive methane emissions from fracking have found astounding levels of pollution. A study form the Uinta basin in Utah, found massive methane leaks from fracking wells. In Uinta, wells were estimated to be leaking 60 tons of methane per hour.
The response from fracking groups to the new rules has been tepid. The Environmental Defense Fund (EDF), a group which claims fracking can be done safely, helped create the proposed legislation. Fracking has grown increasingly controversial as people in shale areas feel the environmental and health impacts of the hundreds of thousands of wells drilled each year.
In the debate over fracking, EDF has played the role of the pro-industry “environmental” group. They have partnered with the oil industry to produce a series of studies on the dangers of methane pollution from fracking. Their first study, which was published in Sept. 2013, found surprisingly low methane pollution from specific parts of the fracking process. However, the sampling of fracking wells used in the study was controlled by the gas corporations who owned them, and many of those involved in the study were later found to have significant ties to the gas industry.
EDF is involved in a congruent partnership with the industry called the Center for Sustainable Shale Development (CSSD). As part of this group, which includes Shell, Chevron and other major gas industry players, EDF would give fracking wells an environmental seal of approval, in the form of a CSSD Certification.
The biggest fracking lobbyist groups, who generally oppose all regulation of the industry, do not support the new rules. A spokeswoman for the American Petroleum Institute said the group hadn’t taken a position on the proposed regulations. Colorado Petroleum Association president Stan Dempsey questioned the state’s authority and the need for new rules.
As the fracking industry tacitly admits by supporting this regulation, fracking poses a serious and as yet unmitigated danger to air quality. It is unknown when these regulations would take effect and given the number of wells already drilled in Colorado and the cost associated with retrofitting all of them, it is unclear if old wells will be required to adhere to the new rules. Air and water pollution from fracking is already impacting people throughout the U.S., and if air quality is in danger from fracking in Colorado, it is in danger wherever fracking is occurring.
Visit EcoWatch’s FRACKING page for more related news on this topic.
Sweden's reindeer have a problem. In winter, they feed on lichens buried beneath the snow. But the climate crisis is making this difficult. Warmer temperatures mean moisture sometimes falls as rain instead of snow. When the air refreezes, a layer of ice forms between the reindeer and their meal, forcing them to wander further in search of ideal conditions. And sometimes, this means crossing busy roads.
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By Aaron W Hunter
A chance discovery of a beautifully preserved fossil in the desert landscape of Morocco has solved one of the great mysteries of biology and paleontology: how starfish evolved their arms.
The Pompeii of palaeontology. Aaron Hunter, Author provided<h2></h2><p>Although starfish might appear very robust animals, they are typically made up of lots of hard parts attached by ligaments and soft tissue which, upon death, quickly degrade. This means we rely on places like the Fezouata formations to provide snapshots of their evolution.</p><p>The starfish fossil record is patchy, especially at the critical time when many of these animal groups first appeared. Sorting out how each of the various types of ancient starfish relate to each other is like putting a puzzle together when many of the parts are missing.</p><h2>The Oldest Starfish</h2><p><em><a href="https://www.biorxiv.org/content/10.1101/216101v1.full.pdf" target="_blank" rel="noopener noreferrer">Cantabrigiaster</a></em> is the most primitive starfish-like animal to be discovered in the fossil record. It was discovered in 2003, but it has taken over 17 years to work out its true significance.</p><p>What makes <em>Cantabrigiaster</em> unique is that it lacks almost all the characteristics we find in brittle stars and starfish.</p><p>Starfish and brittle stars belong to the family Asterozoa. Their ancestors, the Somasteroids were especially fragile - before <em>Cantabrigiaster</em> we only had a handful of specimens. The celebrated Moroccan paleontologist Mohamed <a href="https://doi.org/10.1016/j.palaeo.2016.06.041" target="_blank" rel="noopener noreferrer">Ben Moula</a> and his local team was instrumental in discovering <a href="https://www.sciencedirect.com/science/article/abs/pii/S0031018216302334?via%3Dihub" target="_blank" rel="noopener noreferrer">these amazing fossils</a> near the town of Zagora, in Morocco.</p><h2>The Breakthrough</h2><p>Our breakthrough moment came when I compared the arms of <em>Cantabrigiaster</em> with those of modern sea lilles, filter feeders with long feathery arms that tend to be attached to the sea floor by a stem or stalk.</p><p>The striking similarity between these modern filter feeders and the ancient starfish led our team from the University of Cambridge and Harvard University to create a new analysis. We applied a biological model to the features of all the current early Asterozoa fossils in existence, along with a sample of their closest relatives.</p>
Cantabrigiaster is the most primitive starfish-like animal to be discovered in the fossil record. Aaron Hunter, Author provided<p>Our results demonstrate <em>Cantabrigiaster</em> is the most primitive of all the Asterozoa, and most likely evolved from ancient animals called crinoids that lived 250 million years before dinosaurs. The five arms of starfish are a relic left over from these ancestors. In the case of <em>Cantabrigiaster</em>, and its starfish descendants, it evolved by flipping upside-down so its arms are face down on the sediment to feed.</p><p>Although we sampled a relatively small numbers of those ancestors, one of the unexpected outcomes was it provided an idea of how they could be related to each other. Paleontologists studying echinoderms are often lost in detail as all the different groups are so radically different from each other, so it is hard to tell which evolved first.</p>
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