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Environmental Concerns

An answer to global warming: tax carbon emitters

An answer to global warming: tax carbon emitters

Reality could persuade some industry groups and some Republicans to seek bargain.

August 28, 2014 6:30 pmLoading…
A presidential legacy in question

A presidential legacy in question

He could leave with country in more danger than 8 years earlier.

August 23, 2014 5:00 pmLoading…
Just add water: AZ pushes for 'bioreactor landfills'

Just add water: AZ pushes for 'bioreactor landfills'

Chad Hancock, a technician with Engineering and Environmental Consultants Inc., uses a device to monitor the amount, concentration, temperature and percentage of methane gases from a well at the Los Reales Landfill. Wells are connected to vertical perforated piping that runs throughout the l…

December 29, 2012 12:00 amLoading…
Just add water: AZ pushes for 'bioreactor landfills'

Just add water: AZ pushes for 'bioreactor landfills'

The Arizona Department of Environmental Quality is seeking federal permits to convert landfills like Los Reales to bioreactors. The addition of water to the landfill is expected to accelerate the rate of waste degradation, creating more methane.

December 29, 2012 12:00 amLoading…
Just add water: AZ pushes for 'bioreactor landfills'

Just add water: AZ pushes for 'bioreactor landfills'

More liquids - and, critics fear, some illegal hazardous wastes - could be coming to Arizona's 39 garbage landfills if a new technology for treating landfill liquids wins federal approval.

December 29, 2012 12:00 am Photos

Photos

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Just add water: AZ pushes for 'bioreactor landfills'

Just add water: AZ pushes for 'bioreactor landfills'

This is the existing methane-capture system and part of the Los Reales Landfill gas-to-energy project. Bioreactor opponents are worried about additional water use and the threat of groundwater contamination.

December 29, 2012 12:00 amLoading…

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