Quantcast

Massive Methane Hot Spot Detected by Satellite

Climate

One tiny section in the U.S. is responsible for a significant amount of the country's methane emissions, according to new information released by scientists from NASA and the University of Michigan.

The Four Corners area seen in red produces the largest concentrated amount of methane emissions in the U.S. On this map, lighter colors are higher than average; darker colors are lower. Image credit: NASA/JPL-Caltech/University of Michigan

In a study published this week, they analyzed satellite-gathered data and found that an area about 2,500 square miles, near the "Four Corners" where Arizona, Colorado, New Mexico and Utah connect, produces the largest concentration of these greenhouse gas emissions ever found in the U.S., more than triple the previous estimate based on ground-gathered information. While carbon emissions are more plentiful and have attracted most of the attention as the driver of climate change, methane has been found to be an even more potent greenhouse gas.

The researchers looked at data from 2003-2009 and found that in that time, that area released 590,000 metric tons of methane into the atmosphere annually, nearly three and a half times the previous estimate for the area. That's about 10 percent of the U.S. Environmental Protection Agency's official estimate for the whole country during those years. The hot spot persisted during the entire observation period.

Fracking has been widely identified as a culprit in boosting methane emissions. But this new analysis indicates that older methods of fossil-fuel extraction are just as harmful, with methane emissions added to carbon emissions to multiple the environmental damages from fossil fuels. Fracking wasn't widely used in the area during the period studied; the boom didn't kick off there until 2009. But it is a major coal-mining center. And New Mexico's San Juan Basin is the most active coalbed methane production area in the country, a process in which methane-heavy natural gas (composed of about 95-98 percent methane) is extracted from pores and cracks in coal to use for fuel. In the process, it produces significant leaks (and well as coal mine explosions.)

"The results are indicative that emissions from established fossil fuel harvesting techniques are greater than inventoried," said the study's leader author Eric Kort of the University of Michigan. "There's been so much attention on high-volume hydraulic fracturing, but we need to consider the industry as a whole."

In March, President Obama announced a blueprint for methane emission reduction that included addressing emissions from coal mines.

YOU MIGHT ALSO LIKE

How Much Greenhouse Gas Does Your State Emit?

The Giant Methane Monster Is Lurking

Obama's Methane Emissions Plan Puts Oil, Coal and Gas Industries on Notice

EcoWatch Daily Newsletter

Pixabay

By Claire L. Jarvis

A ruckus over biofuels has been brewing in Iowa.

Read More Show Less
Serena and Venus Williams have been known to follow a vegan diet. Edwin Martinez / Flickr / CC BY 2.0

By Whitney E. Akers

  • "The Game Changers" is a new documentary on Netflix that posits a vegan diet can improve athletic performance in professional athletes.

  • Limited studies available show that the type of diet — plant-based or omnivorous — doesn't give you an athletic advantage.

  • We talked to experts about what diet is the best for athletic performance.

Packed with record-setting athletes displaying cut physiques and explosive power, "The Game Changers," a new documentary on Netflix, has a clear message: Vegan is best.

Read More Show Less
Sponsored
An illegally trafficked tiger skull and pelt. Ryan Moehring / USFWS

By John R. Platt

When it comes to solving problems related to wildlife trade, there are an awful lot of "sticky widgets."

Read More Show Less
Pexels

By Franziska Spritzler, RD, CDE

Inflammation can be both good and bad.

On one hand, it helps your body defend itself from infection and injury. On the other hand, chronic inflammation can lead to weight gain and disease.

Read More Show Less
Pexels

By Dan Nosowitz

It's no secret that the past few years have been disastrous for the American farming industry.

Read More Show Less
Sponsored
Pexels

By Gavin Van De Walle, MS, RD

Medium-chain triglyceride (MCT) oil and coconut oil are fats that have risen in popularity alongside the ketogenic, or keto, diet.

Read More Show Less
Pexels

By Bijal Trivedi

The Centers for Disease Control and Prevention (CDC) released a report on Nov. 13 that describes a list of microorganisms that have become resistant to antibiotics and pose a serious threat to public health. Each year these so-called superbugs cause more than 2.8 million infections in the U.S. and kill more than 35,000 people.

Read More Show Less
Rool Paap / Flickr / CC BY 2.0

By Franziska Spritzler, RD, CDE

Inflammation can be good or bad depending on the situation.

Read More Show Less