Geoengineering vs. volcanic activity for a cooler climate

[More crazy talk from Carnegie Institute’s Ken Caldiera… Anthony] Washington, DC– Major volcanic eruptions spew ash particles into the atmosphere, which reflect some of the Sun’s radiation back into space and cool the planet. But could this effect be intentionally recreated to fight climate change? A new paper in Geophysical Research Letters investigates. Solar geoengineering is a…

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Gangs of Pompeii: Volcanologists vs Archaeologists

Guest “you couldn’t make this sort of schist up, if you were trying” by David Middleton Pompeii row erupts between rival scientific factions Volcanologists say excavations by archaeologists are destroying useful clues about lava flow Hannah Devlin Science correspondent @hannahdev Mon 22 Jul 2019 02.00 EDT […] After years of simmering tensions, a row has…

Birth of an underwater volcano: “This thing was built from zero in 6 months!”… Which is a lot less than 12 years

Guest geological observation by David Middleton From the American Association for the Advancement of SCIENCE! of America… Ship spies largest underwater eruption everBy Roland PeaseMay. 21, 2019 , 1:20 PM Last week, Marc Chaussidon, director of the Institute of Geophysics in Paris (IPGP), looked at seafloor maps from a recently concluded mission and saw a…

Guess where the biggest volcanic eruption of 2018 was? Hint (not Hawaii)

There have been voluminous headlines, photos, and video describing eruptions on Hawaii’s Kilaueua in 2018, and while they were visually impressive, when it comes to potentially climate altering sulfur dioxide, those eruptions pale in comparison to another Pacific volcano. NASA Earth observatory writes: While Kilauea dominated headlines last year, the largest explosive eruption of 2018…

Revising the history of big, climate-altering volcanic eruptions

New method, co-developed at UMD, refines the 2,600-year history of large eruptions that inject planet-cooling particles into the stratosphere From the UNIVERSITY OF MARYLAND For all their destructive power, most volcanic eruptions are local events. Lava flows tend to reach only a few miles at most, while airborne ash and soot travel a little farther.…

Spot The Volcano, 1815 Edition

Guest Post by Willis Eschenbach It’s been a while since I played “Spot The Volcano”. The premise of the game is that the decrease in temperatures from volcanic eruptions is nowhere near as large as people claim. So I ask people to see if they can identify when a volcano erupted based on the temperature…

USGS issues first USA Volcano Threat Assessment in over a decade

18 volcanoes in the USA are classified as “very high threat”, many are in the Pacific Northwest. The United States has 161 young, active volcanoes within its borders. Since 1980, there have been 120 eruptions and 52 episodes of notable volcanic unrest at 44 U.S. volcanoes. The U.S. Geological Survey systematically assesses U.S. volcanoes considered to…

Krakatoa volcano stirs to life again

The volcanic island of Krakatau (previously called Krakatoa) is situated in the Sunda Strait between the islands of Java and Sumatra in the Indonesian province of Lampung. The name is also used for the surrounding island group comprising the remnants of a much larger island of three volcanic peaks which was obliterated in a cataclysmic 1883 eruption. In 1927, a new island, Anak Krakatau, or “Child of Krakatoa”, emerged from…