Experts shine a spotlight on the worst offenders in the Permian basin. The technological fixes are obvious, they say, but state regulators are so far unwilling to act.

The study says fixing 123 methane leaks in Texas could reduce U.S.' methane emissions by 5.5%.

It began with a lightning strike on a parched mountainside above Oro Valley one year ago Saturday.

Malfunctioning equipment accounts for about half of the biggest sources of potent greenhouse gas methane emissions at the United States' largest oilfield, a study led by NASA showed on Wednesday.

Scientists have known last year’s Castle Fire was probably the most destructive for California’s famously fire-resilient sequoias in at least 700 years, but a draft National Park Service report obtained by the Visalia Times-Delta puts a quantitative measurement on that fire’s climate-fueled toll. Between 7,500 and 10,000 monarch sequoias — about 10% to 14% of the world’s mature sequoia population — perished in the fire.

Bethany Wilcox has always wanted to have kids.

“Seeing my parents and how much satisfaction and fulfillment they seemed to have from raising my sister and me, I always wanted that," Wilcox said. "I always thought that was an amazing thing.”

We have an "opportunity to fix these super emitters.”

Export of water-intensive crops has been accelerating for decades.

New research shows that most extreme heat events are going to occur in the tropics rather than the poles.

Fixing just the worst leaks in the Permian Basin oil field could cut methane emissions by 55 tons an hour.

This year and next, Arizona and California intend to draw on water they banked in the big reservoir, even as water levels drop.