Las Vegas Review-Journal: Global warming is already having widespread impact on everything from agriculture to urban health, according to a federal report released Tuesday, and the Southwest -- the hottest, driest region of the country -- faces unique challenges.
The National Climate Assessment highlighted five ways climate change is already impacting the region, which the report defines as California, Nevada, Utah, Arizona, New Mexico and Colorado:
Reduced snowpack and streamflows
Over the past 50 years, the Southwest...