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Thunderstorms pound U.S. South after days of rain

2016-03-12 22:34:00| Climate Ark Climate Change & Global Warming Newsfeed

Reuters: A line of severe thunderstorms hit Louisiana on Saturday, adding more rain to flooded rivers across the lower Mississippi Valley after days of downpours, meteorologists said. Drenching rains this week have killed three people in Louisiana and one in Oklahoma. Two fishermen remain missing in Mississippi, state emergency management officials said. Mike Steele, a spokesman for the Louisiana emergency office, said areas of the state had received more than 2 feet (60 cm) of rain during the deluge....

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Thunderstorms knock out power to thousands in New Orleans area

2015-12-29 00:09:39| Energy - Topix.net

An Entergy map showing power outages severe weather as it moved through southeast Louisiana on Monday, Dec. 28, 2015. A fast-moving line of thunderstorms raced across southeast Louisiana before dawn Monday , bringing heavy rain and strong winds that knocked out power to thousands of customers.

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Stronger thunderstorms driving rise in tropical rainfall: Study

2015-03-27 15:00:00| Climate Ark Climate Change & Global Warming Newsfeed

Reuters: An increase in strong thunderstorms could be responsible for greater rainfall in the tropics as a result of climate change, new research says. The joint research, which was conducted by the Australian Research Council Centre of Excellence for Climate System Science (ARCCSS) and NASA, research found that even though other types of rainfall have decreased in frequency and the total number of thunderstorms has remained the same, the increase in big storms has elevated total rainfall. Thunderstorms...

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Thunderstorms Move Ozone Toward Surface of the Earth, Research Shows

2015-01-30 20:02:00| Climate Ark Climate Change & Global Warming Newsfeed

Yale Environment 360: Thunderstorms move a significant amount of ozone from the stratosphere down toward the earth's surface a process that could have important impacts on climate, according to a recent study in the journal Geophysical Research Letters. Ozone shields the planet from the sun's ultraviolet rays when it's in the stratosphere, the second-lowest layer of the atmosphere, but ozone acts as a powerful greenhouse gas and pollutant when it's nearer to the earth's surface, in the troposphere. Ozone is created...

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Thunderstorms Helping Bring Ozone Down Earth

2015-01-28 16:02:00| Climate Ark Climate Change & Global Warming Newsfeed

Climate Central: Ozone is a bit of a shape-shifting chemical. High in the stratosphere, ozone acts as an ultraviolet-blocking shield around Earth (which is why the ozone hole is such a problem). At ground level, it's a pollutant that can cause serious respiratory problems. And if it finds its way into the troposphere -- the lowest level of the atmosphere -- ozone serves as a potent greenhouse gas that warms the planet. It ends up in the troposphere through a variety of processes including human pollution. It also...

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