nasa.gov - 29 days ago
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Horizontal lightning bolt > View larger image Flashes of intracloud lightning, the horizontal type shown here, usually occur within clouds high in the atmosphere. A decade ago, scientists believed intracloud lightning produced far less NO x per flash than cloud-to-ground lighting. New evidence ...
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Four good green reads, from edible fashion to your pet’s eco-pawprint
Environment —
... . Recent research at NASA’s Goddard Space Flight Center in Greenbelt, Md., has determined that “lightning may have a considerably stronger impact on the climate in the mid-latitudes and subtropics — and less on surface air quality — than previously thought.” Here’s more detail . Editor’s note: For more articles about the environment, see the Monitor’s ...
Positive Climate Feedback from Lightning?
Global Warming —
... According to the NASA story, there are 1.2 billion lightning flashes in the world per year. Each lightning flash produces a puff of nitrogen oxide gas that reacts with sunlight and other gases in the atmosphere to produce ozone. Near Earth's surface, ozone can harm human and plant health; higher in the atmosphere, it is a potent greenhouse gas.
The image below from NASA shows the annual lightning flash density across the globe. Note the highest concentration is over central Africa. Florida also experiences a great deal of lightning. ...
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