Arizona students create solar-powered go-karts to compete in statewide Racing the Sun competition

TUCSON – For the past several months, Morgan Smith has hunched over the framework for a small go-cart in a classroom littered with metal shavings at his Tucson high school.

High school students create solar-powered go-karts.

Husband and wife show support by recycling bras for women in need

GILBERT – Inside a storage facility like any other, a husband and wife are working on a mission unlike any other.


Opponents file suit to block border wall on environmental grounds

WASHINGTON - Rep. Raul Grijalva, D-Tucson, and the Center for Biological Diversity challenged President Donald Trump's proposed border wall on environmental grounds Wednesday, going to court to force the administration to follow environmental protection laws before starting construction.


County wants visitors to discover Hassayampa preserve, hidden treasure in Wickenburg

WICKENBURG – A hidden gem is getting revamped.


National campaign to restore water ecosystems helps fund projects in Verde Valley

CAMP VERDE – Zach Hauser hopes that part of his family-owned property will remain a farm “forever.”


Phoenix slips in national ranking of cities for solar energy capacity

WASHINGTON - Phoenix fell from third to fifth place among cities for total installed solar capacity last year, slowed by charges imposed on Arizona solar users at time when other cities surged ahead with new installation.


Red rocks, a water tank and angry neighbors: controversy flows in Sedona

SEDONA – Residents of a Sedona neighborhood are concerned their red rock oasis may soon get an unwelcome intruder: a 1.5 million gallon water tank.


Court rejects Arizona’s challenge to EPA-imposed emissions rules

WASHINGTON - The Environmental Protection Agency was within its rights to impose certain standards on industrial sites in Arizona in place of state rules meant to ensure visibility in federal parks, a federal appeals court ruled.


Solar jobs continue growth in Arizona, not as fast as rest of nation

WASHINGTON - Arizona saw a 6 percent increase in solar jobs in 2016, bouncing back from a sharp drop the year before but still trailing well behind the national average growth of 25 percent in solar jobs.


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.