Energy Exchange

Oil and Gas Lobby Says Up Means Down

By Mark Brownstein / Published: February 27, 2015

Marcellus_Shale_Gas_Drilling_Tower_1_crop The Environmental Protection Agency just released the draft of its yearly greenhouse gas emissions inventory. It shows in no uncertain terms that methane emissions from the oil and natural gas sector are going in the wrong direction: Up.

Emissions from this overall sector are up two percent in 2013, which includes emissions from oil (petroleum) systems which were at their highest levels ever since estimates began in 1990 – and up 68 percent since 2005. Emissions from natural gas processing, where impurities are removed to produce pipeline quality gas, are up 38 percent since 2005. From transmission and storage: Up 11 percent.

Yet the industry’s public relations machine says emissions are falling. So what’s the disconnect? Read More »

Posted in General, Methane, Natural Gas / Read 1 Response

Fly-by: What the Latest Aerial Study of Methane Emissions Tells Us

By Mark Brownstein / Published: February 19, 2015

lockheed1 In the summer of 2013, researchers aboard a four-engine P-3 Orion aircraft – a variant of the plane used by the U.S. Navy to track submarines – flew over three of the nation’s biggest shale gas regions, taking measurements that would allow them to estimate the amount of methane leaking from the production fields below.

The team from University of Colorado’s Cooperative Institute for Research in Environmental Sciences (CIRES) and NOAA Earth System Research Laboratory published their findings this week in the Journal of Geophysical Research: Atmospheres, adding new depth to our understanding of methane leaks, but also underscoring important questions.

Comparing their readings to production figures for the region, they estimated a total leak rate of 0.18 to 2.8 percent, which is at the low end of the range of findings in other research. For some, this may be cause for celebration.

But don’t pop the champagne corks just yet. Read More »

Posted in Methane, Natural Gas / Tagged Methane, Natural Gas | Comments are closed

Studies Provide Insight on Two Overlooked Segments of Oil and Gas Industry

By Peter Zalzal / Published: February 10, 2015

Scientists David Lyon and Ramón Alvarez contributed to this post

Two studies released today in the journal of Environmental Science and Technology provide new insights into methane emissions from significant sources in the oil and natural gas sector and underscore the urgency of taking action to address pollution from these sources. The studies—focusing on the gathering and processing segment and the transmission and storage segment—were led by researchers at Colorado State and Carnegie Mellon universities and Aerodyne Research, and included collaboration with EDF and companies in each of these segments.

In the gathering and processing study, researchers measured 130 gathering and processing facilities, finding emissions at gathering facilities ranging from 0.6 to 600 standard cubic feet of methane leaking per minute (scf/m). For the transmission and storage study, a different team led by CSU also collected extensive on-site and downwind measurements of methane at 45 transmission and storage sites. Site-level methane measurements ranged from 2 to 880 scf/m, with an average measurement of 70 scf/m. Of all the facilities measured for these studies, data suggests the natural gas emitted was worth about $25 million and had the 20-year climate impact equal to the emissions of 2 million passenger vehicles. Read More »

Posted in Methane, Natural Gas / Tagged Climate, EPA, methane studies | Comments are closed

No Easy Answers When Disposing of Oil and Gas Wastewater

By Scott Anderson / Published: December 12, 2014

We all want easy answers. And often times the harder the question, the easier we want the answer to be.

Increased natural gas use, for example, can help decrease U.S. greenhouse gas emissions as it has a lower carbon content compared to coal or oil. Natural gas also can help transition our energy mix to more renewable energy sources. This is because properly designed, gas-fired generation can respond quickly to pick up the slack if the wind suddenly dies or clouds unexpectedly roll in. But, these benefits mean nothing if the communities where gas is produced suffer air and water pollution, or if methane – a powerful global warming pollutant that is the primary ingredient in natural gas – is allowed to leak into the atmosphere unchecked.

We all should be worried about global warming and the role that sloppy oil and gas production and distribution practices contribute to the problem. But communities where oil and gas development is taking place are also worried about how oil and gas drilling is impacting their water supplies. This is a key issue and one aspect of the groundwater contamination concerns, rightfully gaining attention in these communities, is how and where toxic wastewater is disposed of that is produced along with oil and gas. But here, too, the answers don’t come easy. Read More »

Posted in Methane, Natural Gas / Tagged produced water | Read 1 Response

Many Roads, One Destination: Action on Methane Emissions from Oil and Gas

By Sean Wright / Published: October 23, 2014

Earlier this week the Center for American Progress held an event to raise awareness about the impacts of methane. “Opportunities for Curbing Methane Pollution” brought together representatives from a wide spectrum of backgrounds: state and federal policy experts, environmental advocates, and labor. While each had their own reasons, be them safety, jobs, health, climate, all agreed that reducing methane emissions from the US oil and gas sector was both critical and possible. That sentiment was captured nicely by Judi Greenwald from the Department of Energy:

“For most people it’s primarily about methane and… these greenhouse gas reductions, but I think there are a lot of other [policy] drivers. In some instances it’s really the safety benefit that’s most important…. [And] there are a lot of other reasons to do this. So you get agreement on actions, but you might actually not get agreement on each [policy] driver.”

Reducing methane emissions is good for the climate

Carol Browner, Senior Fellow at the Center for American Progress and former Administrator of the Environmental Protection Agency, offered opening remarks during which she said methane is a “very serious climate problem” because of its potency as a greenhouse gas. Methane is 84 times more potent than carbon dioxide over a 20 year time frame and short-term climate forcers like methane will drive a significant portion of the climate change we experience in our lifetime. Read More »

Posted in Methane, Natural Gas / Comments are closed

Flexible Pollution Rules can Boost the Economy: 5 Reasons Why

By Diane Munns / Published: October 23, 2014

Nobody likes being told what to do.

Gina McCarthy, head of Environmental Protection Agency, knows that. So she asked her agency to craft a plan that leaves it up to states to shape their energy future – as long as they cut carbon emissions from power plants.

Often lost in the heated debate over EPA’s Clean Power Plan, however, is the fact this built-in flexibility will also give a boost to clean technology ventures, and speed up energy innovations already under way in many states. It could bring down costs for consumers, and maybe even give a much-needed boost to our economy.

Here’s how. Read More »

Posted in Clean Energy, Clean Power Plan, Natural Gas / Tagged EPA | Comments are closed