New Study Finds Oil and Gas Methane Emissions in the Barnett Shale Almost Twice What Official Estimates Suggest

December 9, 2015 by EDF Energy Exchange

Shale Emissions Estimates

A new scientific study published recently reports findings from the most comprehensive examination of regional methane emissions completed to date. Focused on Texas’ Barnett Shale, the result is that methane emissions in the Barnett Shale are 90 percent higher than EPA’s inventory data would suggest.[read more]

VW's Deepwater Horizon?

September 24, 2015 by Maximilian Auffhammer

Volkswagen Fraud

Last week one of the biggest environmental scandals since the Deepwater Horizon disaster made its way to somewhere near the bottom of page 11 of most major newspapers. VW admitted to systematically cheating on emissions tests of its Diesel vehicles. This might sound snoozy, until you read up on the details.[read more]

Canadians Deserve Honest Climate Talk

August 12, 2014 by Mark Jaccard

In 2007, Prime Minister Stephen Harper’s government asked me and four other economists if we agreed with its study showing huge costs for Canada to meet its Kyoto commitment to reduce greenhouse gas emissions by 2010. We all publicly agreed.[read more]

Natural Gas Emissions vs. Unaccounted For Gas

May 8, 2014 by Dave McCurdy

Gas Measurements

The Obama Administration’s “Strategy to Cut Methane Emissions,” released at the end of March, included recognition that efforts to modernize infrastructure and enhance pipeline safety have significantly contributed to a declining trend in natural gas emissions.[read more]


Lower Threshold to End Filibusters in Senate Boosts Odds for Aggressive Emission Limits by Obama

November 25, 2013 by Jim Pierobon

US Senate Rules and Emissions

The battle over existing and future nominations to the D.C. Circuit – not in Congress, not inside a regulatory agency per se – has become the defining energy / environmental policy contest for the next three years, and perhaps beyond.[read more]

Energy Risk: Carbon Budgets and US Emissions

October 25, 2013 by Lou Grinzo

So how big is the carbon budget? For it to remain likely that we stay below two degrees, the total amount of carbon released through carbon dioxide emissions must be less than 1000 billion tonnes, the IPCC says. 'Likely’ here means a 66 per cent chance.[read more]

Illustrating How the Keystone Pipeline Fails the President's Climate Test

October 14, 2013 by NRDC Switchboard

Keystone XL and Emissions

The fact are clear: The Keystone XL pipeline fails President Obama's climate test. The pipeline significantly exacerbates the problem of carbon pollution. It is not in the national interest, and its Presidential Permit should be denied.[read more]

Energy Truth: Solar Reduces Emissions Despite Variability

October 13, 2013 by Nigel Morris

Solar Energy Emissions Reduction

As a researcher, I’d like to come right out and thank the coal industry for creating a never-ending stream of research opportunities. You’re awesome. Like a constant conveyor belt of coal, they seem to be able to roll out a never-ending stream of myths and challenges.[read more]

Efforts to Limit Aviation Emissions Advance at ICAO

October 9, 2013 by Steve Seidel

The United Nations’ body that oversees civil aviation has reached an important milestone in international efforts to craft effective solutions to climate change. And this success should send a signal to other organizations as they grapple with the challenges of limiting emissions.[read more]

Would An Emissions Deal Break the Keystone XL Deadlock?

October 2, 2013 by Geoffrey Styles

You would never know it from protest slogans conflating all types of air pollution as if they were identical, but the characteristics and effects of greenhouse gases like CO2 are different from the emissions from automobile tailpipes or the sulfate pollution from coal power plants.[read more]

Natural Gas, the Media, and New EPA Pollution Rules

September 22, 2013 by Lou Grinzo

People don’t realize that natural gas doesn’t deliver enough of a reduction in our emissions to be a good idea, and this will lead us to the biggest single misstep in our response to the growing impacts of climate change unless we change course drastically and very soon.[read more]

Sea Level Rise: Holding Back the Ocean

August 14, 2013 by Lou Grinzo

The hideously high cost of the climate change impacts we’ve already locked in and continue to magnify with business as usual, which is to say, too bloody high and still growing emissions. Another major component is the latency of human systems.[read more]

How Anti-Fracking Activists Deny Science on Air Emissions

August 13, 2013 by Steve Everley

A common talking point among critics of hydraulic fracturing is that they somehow own “the science” on shale development. The industry is merely raising doubt about scientific studies just enough to confuse the public and make them think there’s a legitimate debate.[read more]

The Tesla of Garbage Trucks Could Clean Up Urban Air

June 6, 2013 by Peter Lehner

light truck cleantech?


An innovative retrofit for medium-duty trucks (such as delivery trucks and garbage trucks) could improve fuel efficiency and reduce smog and particle emissions by 90 percent.[read more]


Is the EPA’s Tier 3 Standard Sulfur Reduction Development Process Misguided?

May 29, 2013 by John Miller

The EPA’s new Tier 3 standards will significantly reduce gasoline sulfur content and associated vehicle tailpipe emissions. But has the EPA developed their Tier 3 standards in the most efficient and cost-effective manner?[read more]