Energy Exchange

Selected tag(s): Methane

Coloradans Overwhelmingly Voice Support for Proposed Air Regulations

By Dan Grossman / Published: February 19, 2014

Colorado is the quintessential swing state – with voters split about evenly between Republicans, Democrats and Independents.  That can make for some fractious politics at times, but our diversity is part of what makes us great.

What makes us even better is our unity – and that’s what we saw today when, by a margin of almost 10-to-1, Coloradans of all stripes called on the state’s Air Quality Control Commission (AQCC) to adopt new rules that would slash air and climate pollution coming from oil and gas development activities.

The AQCC opened its hearings on the proposed rules with a full day of citizen input, with people traveling from around the state (one drove six hours) to make their voices heard.  Residents from rural communities, including many from the Western Slope, stood up, one after another, to tell the AQCC Commissioners that the proposed rules should apply statewide and that the handful of local officials opposing the rules are out of step with the citizens they’re supposed to serve.  In response to those local officials, one citizen from Ridgway implored the Commission to protect all Colorado families and not “turn the West Slope into an air quality sacrifice zone.”

EDF couldn’t agree more.  Air quality in western parts of Colorado is trending in a bad direction, teetering on the edge of violating federal health standards.  The state health department issued nine ozone advisories last winter for Western Slope counties where oil and gas development is prevalent, meaning the air wasn’t healthy for kids, the elderly, active adults and people with respiratory illness.

Read More »

Posted in Air Quality, Climate, Colorado, General, Methane, Natural Gas / Also tagged , , , | Comments are closed

New Study Underscores Urgent Need to Reduce Methane Emissions from Natural Gas Operations

By Steven Hamburg / Published: November 26, 2013

Steve-Hamburg_D4B8294_287x377You may have seen news reports about a new methane emissions study conducted by climate researchers from Harvard and seven other institutions and just published in Proceedings of the National Academy of Sciences (PNAS).  The new paper provides an improved estimate of the total methane budget of the US – in other words, how much methane is being released into the atmosphere each year from all sources, including livestock and oil-and-gas production.

Based on analysis of nearly 5,000 air samples collected in 2007 and 2008 from ten communications towers located around the country, as well as 7,700 samples taken in those years from an aircraft monitoring program, the study finds that total methane emissions due to human activity were roughly 1.5 times greater at that time than previously estimated.  Emissions from livestock were roughly twice as high as previous estimates.  Emissions from oil-and-gas operations in Oklahoma and Texas were 2.7 times higher than estimated.

We are glad to see the methane issue getting the attention it deserves.  While EDF’s work to deepen our understanding of current emissions continues, there’s no question about the need for regulation to measure and reduce these emissions.  In August, scientists with the National Oceanic and Atmospheric Administration (NOAA) and the University of Colorado (UC) at Boulder published a long-awaited paper on methane leakage in the journal Geophysical Research Letters that reported an alarmingly high level of methane emissions in the Uintah Basin of Utah — 6.2 to 11.7 percent of total production for an area about 1,000 square miles.  Read More »

Posted in Climate, Methane, Natural Gas / Also tagged | Read 1 Response

Colorado’s Proposal Shows What it Takes to Make Progress on Climate

By Eric Pooley / Published: November 20, 2013
morberg /flickr

morberg /flickr

This commentary originally appeared on our EDF Voices: People on the Planet blog.

At a time when partisan rancor is the order of the day, this week’s news out of Colorado is a tribute to the power of partnership. On Monday, Governor John Hickenlooper of Colorado proposed new regulations for oil and gas operations that, if adopted, will cut both conventional air pollution and climate pollution – by making Colorado the first state in the nation to tackle the problem of methane emissions. The big announcement showed that industry leaders, state officials and an environmental group like Environmental Defense Fund can sit down together to negotiate a plan to deliver cleaner, safer air. And just in time. As EDF’s Rocky Mountain Regional Director Dan Grossman told NPR this week, “the fundamental question [is] whether or not citizens will tolerate oil and gas development.”

On Election Day, four Colorado communities voted to ban hydraulic fracturing. State officials and industry leaders are getting the message: public trust has been badly damaged, and the only way to restore it is by putting in place strong rules to protect air, water, and communities. Not every community is going to ban oil and gas development, obviously, so we need to protect the many places where it is happening.

While the new Colorado proposal doesn’t address all the issues surrounding oil and gas development, the governor and the state’s regulators should be applauded for their efforts in bringing forward these commonsense air pollution measures, which were agreed to and supported by EDF, Anadarko Petroleum, Encana, and Noble Energy. And we’re not the only ones who think so. Newspapers from Los Angeles to Denver to New York wrote in support of the new rules. New York Times columnist Joe Nocera praised both the proposed legislation and Environmental Defense Fund’s collaborative approach in an op-ed published Monday.  Read More »

Posted in Colorado, Natural Gas / Also tagged , | Read 1 Response

Methane: a Key to Dealing With Carbon Pollution?

By Steven Hamburg / Published: November 5, 2013

Carbon is typically considered enemy number one in the context of climate-altering pollution. There is good reason why. Carbon dioxide (CO2) emitted from power plants is the leading source of U.S. greenhouse (GHG) emissions. Beyond our borders, the historic level of 400 parts per million of GHGs entering into our earth’s atmosphere was passed just five months ago – an indication of the rapid rise in human-produced emissions.

And while reducing carbon pollution is the primary goal of EDF’s climate agenda, so is minimizing methane emissions from natural gas development. That’s because methane, the main ingredient in natural gas, is a powerful GHG that can cause major climate damage in the short term. In fact, a recent analysis by many of the world’s top experts on evolving climate science, the Intergovernmental Panel on Climate Change (IPCC), reports methane to be at least 84 times more potent than CO2 over the first two decades. On a 100-year timeframe, methane is at least 28 times more potent. These are noticeable changes in methane’s Global Warming Potential (GWP) from the IPCC’s last assessment in 2007, with values raised from 72 to 84 and 25 to 28, roughly a 17 percent increase on a 20-year time horizon and a 12 percent increase on a 100-year basis.

IPCC’s fifth assessment (AR5) also quantitatively discusses two additional indirect effects that further increase, albeit modestly, methane’s GWP. First, IPCC considers climate-carbon feedbacks and reports two sets of GWP values: one that accounts for the feedbacks and another that excludes them (they conclude that including this effect is “likely” to give a more accurate estimate of climate impacts from emissions of greenhouse gases like methane or CH4). The 20-year GWP for methane with feedbacks increases from 84 to 86, with the 100-year GWP up from 28 to 34. The explanation for this feedback is diminishing ability of oceans and soils to absorb carbon dioxide as the climate warms. As a result, as methane emissions warm the climate, more CO2 that would have historically been absorbed by the land and ocean remains in the atmosphere, causing additional warming. The second effect now quantified by the IPCC is the production of additional CO2 as CH4 is oxidized in the atmosphere, which adds another point or two to methane’s GWP.

Read More »

Posted in Climate, Natural Gas / Also tagged , | Read 1 Response

Industry And Environmentalists Make Progress On Fracking

By Mark Brownstein / Published: March 29, 2013

This commentary was originally posted on our EDF Voices blog.

Source: danielfoster437/Flickr

Worthy public policy initiatives get announced every day of the week, and reporters mostly greet them with a shrug. But last week’s announcement of a new center designed to set standards for shale gas development in the Appalachian Basin triggered a wave of media attention.

The Washington Post called the Center for Sustainable Shale Development (CSSD), “a heartening breakthrough in the war over fracking.” And the Associated Press wrote: “Some of the nation’s biggest oil and gas companies have made peace with environmentalists, agreeing to a voluntary set of tough new standards for fracking in the Northeast….”

I agree that this is a big deal, and not just because EDF played an important role in the two years of negotiation that led to the formation of this group. It’s a rare to see environmentalists and some of the nation’s biggest energy companies working together to improve the safety of natural gas operations.  This coalition is a step in the right direction to better protect the quality of life for people living among the gas fields.

But, I also need to make a few points clear.

First, the standards put forth by CSSD are no substitute for strong regulation and enforcement.   Voluntary efforts by industry leaders help distinguish the best from the rest and raise the bar for all, but the only path to full protection of our air, water, and health is regulation and enforcement that apply to all.    Read More »

Posted in Natural Gas / Also tagged , | Comments are closed

Study Intends To Determine Methane Leakage Associated With A Growing Natural Gas Transportation Sector

By EDF Blogs / Published: March 4, 2013

This blog post was written by Jason Mathers, Senior Manager of EDF’s Corporate Partnerships Program.

Source: Waste Management

The use of natural gas to power our nation’s freight fleet vehicles is a hot topic in these days of rising diesel and falling natural gas prices. There are several reasons to be excited about this opportunity, including operating cost savings, use of a domestic fuel source, and the potential for a reduction in greenhouse gas (GHG) emissions compared to diesel heavy-duty trucks. However, significant concerns remain with the development of new gas supplies, including the threat of fugitive methane emissions from natural gas vehicles and the fuel supply chain.

Methane is the main ingredient in natural gas and a GHG pollutant many times more potent than carbon dioxide (CO2), the principal contributor to man-made climate change. Even small amounts of methane leakage across the natural gas supply chain can undermine the climate benefit of switching to natural gas from other fossil fuels for some period of time.

In a paper published last year, EDF scientists and other leading researchers examined the impact of potential fugitive emissions on the climate benefits of a switch from diesel to natural gas heavy-duty trucks. The study found that, according to the best available data, methane leak rates would need to be below 1% of gas produced in order to ensure that switching from diesel to natural gas produces climate benefits at all points in time. They also found that – using the EPA leakage rate estimates at that time – converting a fleet of heavy duty diesel vehicles to natural gas would result in increased climate warming for more than 250 years before any climate benefits were achieved.

EDF is working with leading researchers and companies in a series of studies designed to better understand and characterize the methane leak rate across the natural gas supply chain. The studies will take direct measurements at various points across the production, gathering and processing, long distance transmission and storage, local distribution, and transportation. The first study, led by researchers at the University of Texas, is measuring emissions from natural gas production. Results will be released in the coming months. Read More »

Posted in Climate, Methane, Natural Gas / Also tagged | Read 1 Response