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Unusual Weather Leads to Ozone Low Over the Arctic
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Published April 16, 2020
While such low concentrations of ozone are unusual, they are not unprecedented.
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Sulfur Spews from Taal
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Published January 13, 2020
In January 2020, the volcano in the Philippines spewed lava and emitted hazardous amounts of volcanic ash fall and gases.
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The Biggest Eruption of 2018 Was Not Where You Think
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Published February 27, 2019
Kilauea dominated the headlines of western media, but remote Ambae in Vanuatu blew away other volcanic events.
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From Russia with Aerosols
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Published July 18, 2018
Unusually intense fires in Russia sent smoke half-way around the world.
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A Manmade Volcano over Norilsk
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Published June 7, 2018
Sulfur dioxide emissions from ore processing facilities in Norilsk exceed that of many volcanoes.
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A Deadly Eruption Rocks Guatemala
Published June 5, 2018
A dangerous mixture of ash, rock, and hot gas rushed down the slopes of Fuego during a strong eruption from this persistently active volcano.
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Weeks of Extreme Weather in India
Published May 24, 2018
Lightning, thunderstorms, and dust storms are normal in India—but not at this intensity.
Sulfur Dioxide Leaks from Kilauea
Published May 8, 2018
The eruption at one of Hawaii’s most active volcanoes has taken a turn for the worse.
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Sulfur Spews from Kilauea
Published May 4, 2018
The toxic gas was among the components that erupted from the Hawaiian volcano.
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Violent Blast from Sinabung
Published February 21, 2018
The Indonesian volcano blew a chunk of its peak into the sky, dropping ash across tens of kilometers and sending up a sulfur dioxide plume.
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Fuego Erupts
Published February 3, 2018
The Guatemalan volcano is at it again, beginning its latest bout of unruly behavior in late January 2018.
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Tracking the Sulfur Dioxide from Mount Agung
Published November 29, 2017
Mount Agung has been rumbling with increasing unrest for more than three months.
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Smoke Pall Spans the United States
Published September 6, 2017
Smoke from fires in the Pacific Northwest stretched across the United States.
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Record-Breaking Smoke Over Canada
Published August 17, 2017
Dense plumes darkened the skies over the Northwest Territories in August.
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Ozone Hole 2016, and a Historic Climate Agreement
Published October 27, 2016
The same international agreement that successfully put the ozone layer on the road to recovery is now being used to address climate change.
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Smoke and Fires in Central Russia
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Published September 24, 2016
Aerosols from the smoky blazes rose as high at 9 kilometers into the atmosphere.
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Atmosphere Awash with Saharan Dust
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Published June 23, 2016
In mid-June 2016, winds lofted thick plumes of dust from northern Africa’s deserts high into the air.
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Smoke Goes Around the World
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Published July 18, 2015
Wildfires in Alaska and Canada send smoke plumes wafting in opposite directions around the Northern Hemisphere.
Canadian Fires Send Smoke Over the U.S.
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Published June 11, 2015
An unusually thick plume of smoke from wildfires in Alberta, Canada, wafted across U.S. Midwest and eastern states.
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Saharan Dust over the Mediterranean Sea
Published February 5, 2015
High concentrations of Saharan dust swept across the Mediterranean Sea.
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Tracing Aerosols to their Smoky and Sandy Sources
Published July 29, 2014
The aerosol index offers a way to see the long reach of forest fires and dust storms.
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Tracking Dust Across the Atlantic
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Published August 29, 2013
Dust storms in mid-summer 2013 spanned the Atlantic Ocean, depositing particles in the Americas and perhaps suppressing hurricanes.
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Tracking the Chelyabinsk Meteor Plume
Published August 15, 2013
Satellite instruments and computer models help NASA scientists dissect the atmospheric impact of the February 2013 bolide explosion over Russia.
Wildfires Smoke Crosses the Atlantic
Published July 2, 2013
Satellite observations suggest fires in Quebec sent smoke billowing across the Atlantic; but pinpointing the source can pose a scientific challenge.
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