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
On January 1, 2008, Chile’s Llaima Volcano erupted, raining ash on the local wilderness park and sending a column of smoke skyward. In addition to volcanic ash, Llaima’s eruption released a plume of sulfur dioxide. The initially intense plume thinned as it moved eastward.
Published Jan 9, 2008
The eruption at one of Hawaii’s most active volcanoes has taken a turn for the worse.
Published May 8, 2018
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