A new analysis of data from the Aura satellite shows greater concentrations of this atmospheric pollutant.
Published Dec 20, 2013
Levels of the air pollutant have dropped by about 80 percent over the eastern United States.
Published Dec 22, 2015
Sulfur dioxide emissions have declined in the eastern United States and risen slightly in Mexico.
Published May 26, 2017
Using NASA’s Aura satellite and some new analysis techniques, researchers found previously missing or under-reported sources of the pollutant.
Published Jun 7, 2016
A decade of satellite observations show how levels of a common air pollutant have changed over Asian skies.
Published Dec 15, 2015
Devices that limit NOx emissions from electric power plants have helped clear the air over the United States.
Published Jun 27, 2014
This image shows measurements of sulfur dioxide in the air over one of the largest power plants in eastern Europe, the Maritsa Iztok Complex in Bulgaria, on January 12, 2009.
Published Jan 27, 2009
Pollution controls can work even as coal-usage continues.
Published Nov 14, 2017
Sulfur dioxide emissions from ore processing facilities in Norilsk exceed that of many volcanoes.
Published Jun 8, 2018Image of the Day Atmosphere Land Human Presence Remote Sensing
From 2005 to 2014, the Aura spacecraft observed increases in the air pollutant in some cities and decreases in others.
Published Jan 28, 2016
A large cloud of sulfur dioxide stretched across the Northern Pacific Ocean following the eruption of Sarychev Peak Volcano in mid-June 2009.
Published Jun 18, 2009
On July 12, 2008, Okmok Volcano, in Alaska’s Aleutian Islands erupted, releasing a plume of ash and steam. Besides emissions visible to human eyes, Okmok also released sulfur dioxide, a gas our eyes cannot see, but which can affect both human health and climate.
Published Jul 25, 2008
Eruptions are dramatic, but continuous, low-level emissions of volcanic gas are an important input to the atmosphere.
Published Mar 10, 2017
Emissions maps tell the story of global oil markets.
Published Mar 22, 2017
