Air Pollution

8:44am

Sat May 10, 2014
Environment

Oil And Gas Methane Emissions Triple Previous Estimates

A drilling rig and associated equipment near a neighborhood in Weld County, Colorado, just south of Dacono.
Credit David Oonk / CIRES

As new restrictions on methane emissions for Colorado’s Oil and Gas Industry begin, a collaborative study by the National Oceanic and Atmospheric Administration, the University of Colorado and the Cooperative Institute for Research in Environmental Studies reveals those emissions are three times as high than originally thought.

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2:42pm

Sat May 3, 2014
Environment

Northern Colorado Facing Higher Pollution Levels, But Why?

Colorado became the first state to regulate methane emissions from the oil and gas industry.
Credit Brother Magneto / Flickr - Creative Commons

Colorado has traditionally been known as a pristine state with clean air, but ground-level ozone and smog are changing that. Not every county in Colorado is declining in air quality, but the Front Range is receiving low marks.

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1:34am

Mon April 28, 2014
The Salt

Fire-Setting Ranchers Have Burning Desire To Save Tallgrass Prairie

Originally published on Thu May 1, 2014 10:02 am

A line of fire turns brown grass into black earth.
Dan Charles/NPR

For the past month, in part of eastern Kansas, the prairie has been burning, as it does almost every spring. On some days, you could look toward the horizon in any direction and see pillars of smoke. The plumes of pollution have traveled so far that they've violated limits for particulates or ozone in cities as far away as Lincoln, Neb.

But here's the twist: Environmentalists have come to celebrate those fires.

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3:05am

Mon February 24, 2014
Science

Industry Challenges EPA's Greenhouse Gas Rules In High Court

Originally published on Mon February 24, 2014 8:35 am

Not all energy producers find fault with the EPA's rules. Calpine, which helped build the Delta Energy Center in Pittsburg, Calif., says the permitting regulations aren't overly cumbersome.
JAKUB MOSUR AP

The Supreme Court will hear arguments Monday about the Environmental Protection Agency's first-ever greenhouse gas regulations for the biggest polluting facilities.

The case focuses on a 3-year-old requirement that companies get permits anytime they construct new plants or modify existing ones that will emit a lot of greenhouse gases.

EPA's supporters and most of its challengers agree this case is narrow in scope; the court's ruling is not expected to threaten EPA's broader strategy to fight global warming.

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6:00am

Sat February 22, 2014
Oil & Gas

State Regulators Set To Finalize Oil And Gas Rules

Encana oil rig
Photo by Kirk Siegler

Colorado’s Air Quality Control Commission is considering rules that would set limits for emissions and require more extensive efforts to monitor and fix leaks.

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