KNAU and Arizona News
12:41 pm
Wed July 15, 2015

State Officials Review Public Comments for Coal-Fired Plant Proposal

The coal-fired Cholla Power Plant near Joseph City. The plant is co-owned by Arizona Public Service Co.
Credit APS

State officials are sifting through public comments on a proposal that would stop coal from being used to run the Cholla Power Plant near Joseph City. As Arizona Public Radio’s Ryan Heinsius reports, conservation groups say the plan doesn’t go far enough to protect the environment.

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KNAU and Arizona News
2:02 pm
Thu June 25, 2015

Online Tool Reveals Environmentally Vulnerable Communities

Demographic data compiled by EJSCREEN shows northeastern Arizona as an area of concern.
Credit U.S. Environmental Protection Agency

The U.S. Environmental Protection Agency has created a new online tool that identifies communities facing environmental health risks. Parts of northern Arizona are among the nation’s most vulnerable regions.

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KNAU and Arizona News
3:07 pm
Thu January 29, 2015

Arizona Lawmakers Attempt to Halt EPA’s Waterways Rule

Credit USGS

The Environmental Protection Agency is considering an update to the federal Clean Water Act. But, as Arizona Public Radio’s Ryan Heinsius reports, an Arizona congressman is trying to prevent that change from going into effect.

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KNAU and Arizona News
5:00 am
Mon December 8, 2014

EPA’s Proposed Waterways Rule Draws Ire of Arizona’s Senators

The Environmental Protection Agency is revising the Clean Water Act to clarify which waters are protected. As Arizona Public Radio’s Ryan Heinsius reports, both of Arizona’s U.S. senators see the agency’s move as an expansion of federal environmental regulation that could harm the state’s economy.

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KNAU and Arizona News
5:00 am
Tue October 14, 2014

High Methane Concentration at the Four Corners

The methane concentration is shown by the red dot near the Four Corners.
Credit NASA/JPL-Caltech/University of Michigan

A recent finding by NASA reveals that a small area in the four corners region has the highest methane gas concentration in the United States. As Arizona Public Radio’s Justin Regan reports, the study finds the main culprit is natural gas leaks from coal production.

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KNAU and Arizona News
5:00 pm
Wed September 3, 2014

State Officials Express Concern Over EPA’s New Clean Power Plan

The 1,534Mw Sandow Station coal-fired electric power plant in Rockdale, Texas.
Credit Steve Davidson

The Arizona Department of Environmental Quality met earlier this week with a group of utility organizations and others to talk about the EPA’s newest carbon emissions plan. As Arizona Public Radio’s Justin Regan reports, the state has some concerns with the EPA’s goals.

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State Capitol News
8:24 am
Wed June 11, 2014

Environmental Official Asks Lawmakers to Rescind Greenhouse Gas Regulation Block

Henry Darwin, director of the state Department of Environmental Quality, details for lawmakers Tuesday why they should remove a 2010 restriction that bars his agency from coming up with plans to reduce greenhouse gases.
Credit Capitol Media Services photo by Howard Fischer

The state’s top environmental official asked lawmakers Monday to remove a restriction they placed on his agency just four years ago blocking it from regulating greenhouse gases. Arizona Public Radio’s Howard Fischer explains.

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State Capitol News
9:54 am
Mon July 30, 2012

State Opposes New EPA Regs on Cleaner Air

Cholla Power Plant, near Holbrook, Arizona 16 January 2010

State officials and utilities are trying to kill a plan by the U.S. Environmental Protection Agency to force owners of three coal-fired power plants to install expensive pollution control equipment to improve visibility. 

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KNAU and Arizona News
4:00 am
Thu April 26, 2012

Dewey-Humbolt Residents Worry about What the Old Mine Has Left Behind

The Humboldt Smelter sits just off of Main Street in Dewey-Humboldt. The smelter has been out of use since the 1960s, but toxic metals are still coming from the sites.
Zac Ziegler

The town of Dewey-Humboldt, just east of Prescott owes its existence to mining. 

The mining and smelting operations there produced over one-hundred-million-dollars since the 1870s. 

But the industry that was the town’s lifeblood may now be responsible for making the residents sick. 

Residents of Dewey-Humboldt gathered at the local elementary school last week.

They came to hear the latest on the Environmental Protection Agency’s plans for the area. 

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