PHOENIX – January 2020 was the warmest January recorded across the world. But what does that mean for Arizona?
WASHINGTON - An emotional Tohono O'odham Nation chairman told lawmakers Wednesday that blasting on sacred sites in national monuments to build a border wall near his reservation has "forever damaged our people."
HERMOSILLO, Mexico – The Trump administration’s border wall construction is threatening El Pinacate and Gran Desierto de Altar Biosphere Reserve, a UNESCO World Heritage Site, according to a petition by conservationists and the Tohono O’odham Tribe.
PHOENIX – Palo Verde Nuclear Generating Station west of Phoenix is trying to reduce its use of wastewater in the nuclear cooling process by using even dirtier water.
WASHINGTON - A federal judge has overturned environmental permits for the proposed Rosemont Copper Mine, saying the U.S. Fish and Wildlife Service failed to consider the mine's impact on several endangered species in the Santa Rita Mountains.
PHOENIX – Residents will see their recycling and composting rates go up over the next two years. The rate increase comes after two years of China cutting back on what types of recycling it will accept, meaning less revenue to offset the city’s recycling program.
PHOENIX – “Perfect droughts,” when diminished streamflow and precipitation affect all of a region’s water sources, occurred in California an average of six times a century for the past 600 years, University of Arizona tree-ring experts say, and they could become longer and more common in the future, irrespective of climate change.
PHOENIX – New research says human-induced climate change played a big role in the Four Corners drought of 2017 and 2018, which caused $3 billion in losses and prompted an emergency drought declaration on the Navajo Nation Reservation.
Scientists hope to win global competition with concrete that incorporates and reduces carbon dioxide emissions
PHOENIX – A UCLA team is developing a concrete that aims to reduce carbon emissions from ordinary concrete production.