Posted on May 17, 2014 by Bob Berwyn
FrackNation … but for how long?
Is natural gas really the lesser of two evils?
FRISCO — As frackers desperately try to pump every last bit of gas from the ground before the global warming clock runs out, scientists warn that methane emissions could push Earth over a climate tipping point in just a few years.
“We have to control methane immediately, and natural gas is the largest methane pollution source in the United States,” said Robert Howarth, greenhouse gas expert and ecology and environmental biology professor at Cornell University. “If we hit a climate-system tipping point because of methane, our carbon dioxide problem is immaterial. We have to get a handle on methane, or increasingly risk global catastrophe.” Continue reading
Filed under: air quality, climate and weather, Environment, global warming | Tagged: fracking, global warming, methane, Natural gas, Radiative forcing | 2 Comments »
Posted on February 16, 2014 by Bob Berwyn
America’s natural gas infrastructure has leakage issues.
Methane emissions from natural gas industry facilities and other sources may be up to 75 percent higher than EPA estimates
By Summit Voice
FRISCO — A comprehensive air quality analysis shows that most estimates of methane emissions from various sources — including the natural gas industry — are much too low, a result that didn’t surprise the scientists who led the study. Total U.S. methane emissions are probably about 25 to 75 percent higher than EPA estimates.
“People who go out and and actually measure methane pretty consistently find more emissions than we expect,” said the lead author of the new analysis, Adam Brandt, an assistant professor of energy resources engineering at Stanford University. “Atmospheric tests covering the entire country indicate emissions around 50 percent more than EPA estimates,” said Brandt. “And that’s a moderate estimate.” Continue reading
Filed under: climate and weather, energy, Environment, gas drilling, global warming | Tagged: air pollution, climate, global warming, methane, Natural gas | Leave a comment »
Posted on January 14, 2014 by Bob Berwyn
Coal losing ground, but is still the biggest source of fuel for generating electricity
By Summit Voice
FRISCO — The gradual shift to natural gas power plants may not be a panacea for reducing concentrations of atmospheric greenhouse gases, but the switch has helped slow the pace emissions.
“Since more and more of our electricity is coming from these cleaner power plants, emissions from the power sector are lower by 20, 30 even 40 percent for some gases since 1997,” said NOAA atmospheric scientists Joost de Gouw. Continue reading
Filed under: air quality, climate and weather, Environment, global warming, greenhouse gases | Tagged: climate, coal, global warming, greenhouse gases, Natural gas | 1 Comment »
Posted on April 8, 2013 by Bob Berwyn
Coal-fired power plants currently produce about 46 percent of the country’s electricity. Photo via Wikipedia and the Creative Commons.
Study compares economic sensitivity of gas and coal-fired power plants
By Summit Voice
SUMMIT COUNTY — Proposed new limits on power plant emissions could spur a big shift away from coal and toward natural gas. The new rules on sulfur dioxide, particulate matter, nitrogen oxide and mercury may make nearly two-thirds of the nation’s coal-fired power plants as expensive to run as plants powered by natural gas, according to a new Duke University study.
“Because of the cost of upgrading plants to meet the EPA‘s pending emissions regulations and its stricter enforcement of current regulations, natural gas plants would become cost-competitive with a majority of coal plants — even if natural gas becomes more than four times as expensive as coal,” said Lincoln F. Pratson, a professor of earth and ocean sciences at Duke’s Nicholas School of the Environment. Continue reading
Filed under: energy, Environment | Tagged: coal, Duke University, energy, Environment, Natural gas, Nicholas School of the Environment | Leave a comment »
Posted on October 2, 2012 by Bob Berwyn
Cleanup slated at the Ignacio Gas Treating Plant on the Southern Ute Indian Reservation.
By Summit Voice
FRISCO — A Texas-based energy company has been hit with a $207,150 Clean Air Act fine after polluting the air around Ignacio, Colorado for more than 10 years.
After working with the EPA to resolve the alleged violations, Texas-based Elm Ridge Exploration Company, LLC will clean up its act at the Ignacio Gas Treating Plant located on the Southern Ute Indian Reservation. The company will also pay $67,850 in unpaid permit fees.
The plant has been in operation since 1999, accepting low-pressure raw and untreated natural gas from about 140 surrounding wells in the Ignacio Blanco Gas Field in La Plata County. The plan became a major source of nitrogen oxides and formaldehyde in 2000.
A 2010 inspection showed that the plant failed to show continuous compliance with various emissions standards and that the operators failed to obtain a required permit. Continue reading
Filed under: air quality, Colorado, energy, Environment, gas drilling | Tagged: Clean Air Act, Colorado, EPA, gas drilling, Ignacio gas treating plant, Natural gas, Southern Ute Reservation | 2 Comments »
Posted on February 28, 2012 by Bob Berwyn
The Mojave generating station, near Laughlin, Nevada. PHOTO VIA WIKIPEDIA AND THE CREATIVE COMMONS.
Harvard study tracks energy use, emissions during the 2009 recession
By Summit Voice
SUMMIT COUNTY — A slight shift in the relative prices of coal and natural gas could pay big dividends in the quest to reduce greenhouse gas emissions, according to Harvard researchers who said that, when the United States fell into the 2009 recession, greenhouse gas emissions also fell, by 6.59 percent relative to 2008.
They said that, in the power sector, the recession was not the main cause. Instead, it was a decrease in the price of natural gas reduced the industry’s reliance on coal.
According to the econometric model developed by the Harvard School of Engineering and Applied Sciences, emissions could be cut further by the introduction of a carbon tax, with negligible impact on the price of electricity for consumers. Continue reading
Filed under: air quality, energy, Environment, global warming, Summit County news | Tagged: climate, coal, Environment, Fossil fuel, Greenhouse gas, Natural gas | 5 Comments »
Posted on September 9, 2011 by Bob Berwyn
A natural gas drilling rig in Texas, via the Creative Commons.
Methane leaks a wild card in energy and climate change equation
By Summit Voice
SUMMIT COUNTY — A new study from a senior researcher at the National Center for Atmospheric Research challenges the conventional wisdom that shifting from coal to natural gas would help slow the rate of global warming. The findings suggest that a partial worldwide shift to natural gas could actually accelerate climate change through at least 2050, even if without methane leaks from gas production.
Methane is a potent heat-trapping gas and it’s unclear how much methane is released during natural gas production. The picture is further complicated by the fact that coal combustion also releases large amounts of sulfates and other particles that tend to cool temperatures by blocking incoming solar radiation — as bad as those byproducts may be for the environment.
“Relying more on natural gas would reduce emissions of carbon dioxide, but it would do little to help solve the climate problem,” said researcher Tom Wigley, who is also an adjunct professor at the University of Adelaide in Australia. “It would be many decades before it would slow down global warming at all, and even then it would just be making a difference around the edges.” Continue reading
Filed under: air quality, climate and weather, energy, Environment, global warming | Tagged: climate change, coal, Environment, global warming, methane, National Center for Atmospheric Research, Natural gas, University of Adelaide | 2 Comments »