Sustainability

Changing landscapes, rising temperatures in Maricopa county

PHOENIX - The ground is 9 degrees hotter at night in Chandler and Gilbert than it was at the turn of the century, as increases in population and development in those areas resulted in changes in land use, according to a 2016 study.

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.

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.