Trump rolls back Obama coal, clean-air rules; critics question impact

WASHINGTON - President Donald Trump's executive order rolling back at least a half-dozen Obama-era climate policies will not save coal jobs as the president claims, but it will definitely harm the environment, critics said Tuesday.

Time to take out the trash: Young innovators work on ways to reduce landfill waste

PHOENIX - An app that tracks a garbage truck’s route in real time and bins that help users better separate trash from recyclables are among potential inventions vying for a $20,000 trash award.

UA partners with company to make concrete out of byproduct from coal mining

TUCSON – The University of Arizona has partnered with a private manufacturing firm to create a more eco-friendly version of concrete.

Advocates: Cutting energy funds leaves poor with ‘heat or eat’ choice

WASHINGTON - Arizona got more than $21 million to help low-income residents pay their heating bills last year and another $1 million for home weatherization - money that would be lost under the Trump administration's proposed budget.

Phoenix parks board to vote on South Mountain Park improvements

PHOENIX – City officials and residents have worked for years to solidify plans to improve South Mountain Park. And they’re finally ready to begin work on $23 million worth of improvements.

Resolution mine official calls permitting process a barrier to business

WASHINGTON - The Resolution Copper Mine in Arizona would be operating by now in most countries, but is still years away from getting all the permits it needs to begin mining in the U.S., a company official testified Tuesday.

Court rejects cases on Navajo Generating Station impact, its closing

WASHINGTON - A federal appeals court rejected two cases related to the Navajo Generating Station, one that aimed to tighten environmental restrictions on the coal-fired power plant and another questioned the process that calls for the plant's closure.

Tempe startup designs fashion hub to nurture AZ designers

TEMPE – A chrome mannequin greets visitors entering a plain, red-brick building. The click of a sewing machine echoes in the warehouse as one worker hunches over a strip of cloth. Workers glide a steam iron over fabric.

Seven steps to ‘harvesting’ rainwater to turn your yard into a lush landscape

SCOTTSDALE — Harvest the rain. Think of it like changing the path of rain. Instead of directing water into puddles, send it toward desert shrubs, flowers and rocks you place in your yard.

Oak Flat mine protesters march 40 miles on trail of opposition

SAN CARLOS – It’s a chilly Friday morning on highway AZ-170 on the San Carlos Apache Indian Reservation.

Advocates worry success could be latest threat for gray wolves

WASHINGTON - Populations of endangered Mexican gray wolves have reached their highest numbers since reintroduction efforts began nearly 20 years ago, but rather than cheer the success, environmentalists are worried it could backfire on the struggling animals.

Report: Climate change a growing factor in fall of Colorado River flows

WASHINGTON - There are many factors behind declining Colorado River flows, but climate change plays a larger part than previously thought and the threat will continue to grow if global warming is not addressed, a recent report says.