"In the 1930s, workers using explosives and machinery excavated a 13-mile tunnel beneath Mt. San Jacinto to bring Colorado River water to Southern California. The Metropolitan Water District recently offered visitors a look inside the tunnel, an engineering feat that is a key piece of the 242-mile Colorado River Aqueduct."

"Federal health officials announced plans Tuesday to phase out synthetic food dyes made from petroleum, marking a significant shift in how the U.S. regulates chemical additives in food."

"Why some U.S. cities are so much greener than others." Includes lookup map.

"The change may speed up flood recovery, but it will leave communities — and taxpayers — facing the same problems over and over again."

"At 90% of the state historical average, the Sierra Nevada snowpack is nothing like record-smashing 2023. But it ‘s the third year in the row with near-average or above-average snowpack."

"Transportation Secretary Sean Duffy announced the administration was giving New York City a 30-day extension for its congestion pricing plan and putting New York Gov. Kathy Hochul (D) “on notice.”

"Evacuating the Tahoe basin in summer could take 14 hours, and 99% of properties in South Lake Tahoe are at risk — yet new resorts are being built in high-danger fire areas."