Pyrocumulonimbus: Fire-Breathing dragon of the clouds

Pyrocumulonimbus is the fire-breathing dragon of clouds. A cumulonimbus without the "pyre" part is imposing enough -- a massive, anvil-shaped tower of power reaching five miles (8 km) high, hurling thunderbolts, wind and ...

Aircraft cause precipitation, hole-punch clouds

As turboprop and jet aircraft climb or descend under certain atmospheric conditions, they can inadvertently seed mid-level clouds and cause narrow bands of snow or rain to develop and fall to the ground, new research finds. ...

Spike in major league home runs tied to climate change

In the history of Major League Baseball, first came the low-scoring dead-ball era, followed by the modern live-ball era characterized by power hitters such as Babe Ruth and Henry "Hank" Aaron. Then, regrettably, was the steroid ...

Climate change boosts odds of extreme weather: study

Severe droughts, floods and heat waves rocked the world last year as greenhouse gas levels climbed, boosting the odds of some extreme weather events, international scientists said Tuesday.

Clearing up confusion on future of Colorado River flows

The Colorado River provides water for more than 30 million people, including those in the fast-growing cities of Las Vegas, Phoenix and Los Angeles. Increasing demand for that water combined with reduced flow and the looming ...

Tornado debris study could lead to better warnings

Photos and mementoes that were snatched up and blown hundreds of miles during tornados in the south of the United States two years ago are giving researchers new insight on how debris is carried by the storms and how it could ...

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