Underground volcanoes spur Antarctic glacier melt

Glaciers in Antarctica are being melted not only by warmer ocean waters but also by underwater volcanoes, a change in our basic understanding of what’s happening underneath West Antarctica’s ice sheet, scientists say. Geothermal heat from underneath is helping melt the region’s Thwaites Glacier, in the headlines recently for its rapid melt and retreat, researchersContinue reading “Underground volcanoes spur Antarctic glacier melt”

9 lousy places for a vacation

1. Buford, Wyoming Formerly sporting a bustling population of two, Buford now only has a single resident. 2. The Great Pacific Garbage Patch The Patch is a basically immobile, gigantic mass of trash out in the middle of the Pacific. Most estimates put its size—composed entirely of plastic bottles, chemical sludge, and basically any otherContinue reading “9 lousy places for a vacation”

Largest volcano on Earth discovered lurking beneath Pacific Ocean and named after Texas A&M University

The world’s largest volcano lurks beneath the Pacific Ocean, researchers announced Thursday in the journal Nature Geoscience. Called the Tamu Massif, the enormous mound dwarfs the previous record holder, Hawaii’s Mauna Loa, and is only 25 percent smaller than Olympus Mons on Mars, the biggest volcano in Earth’s solar system, said William Sager, lead studyContinue reading “Largest volcano on Earth discovered lurking beneath Pacific Ocean and named after Texas A&M University”

Ancient Irish texts show volcanic link to cold weather

By Matt McGrath Environment correspondent, BBC News Researchers have been able to trace the impact of volcanic eruptions on the climate over a 1200 year period by assessing ancient Irish texts. The international team compared entries in these medieval annals with ice core data indicating volcanic eruptions. Of 38 volcanic events, 37 were associated withContinue reading “Ancient Irish texts show volcanic link to cold weather”

Strengthened link between climate change and volcanic eruptions established

It has long been known that volcanic activity can cause short-term variations in climate. Now, researchers at the GEOMAR Helmholtz Centre for Ocean Research Kiel (Germany), together with colleagues from Harvard University have found evidence that the reverse process also occurs: Climate affects volcanic activity. “In times of global warming, the glaciers are melting onContinue reading “Strengthened link between climate change and volcanic eruptions established”

300 Million Year Old Chinese Tropical Forest Discovered Buried Under Volcanic Ash

  About 300 million years ago, volcanic ash buried a tropical forest located in what is now Inner Mongolia, much like it did the ancient Roman city of Pompeii. This preserved forest has given researchers the unusual opportunity to examine an ecosystem essentially frozen in place by a natural disaster, giving them a detailed look atContinue reading “300 Million Year Old Chinese Tropical Forest Discovered Buried Under Volcanic Ash”

Massive Alaskan Volcano May Erupt and Disrupt Air Travel

  Officials are monitoring a remote Alaska volcano that could launch an ash cloud, potentially threatening intercontinental flights. “Eruptive activity” of Cleveland Volcano was detected in satellite data, according to the Alaska Volcano Observatory. The volcano, also known as Mount Cleveland, is on the Aleutian Islands, southwest of mainland Alaska. “A new lava dome hasContinue reading “Massive Alaskan Volcano May Erupt and Disrupt Air Travel”

Chain of Giant Underwater Volcanoes Discovered Near Antarctica

All told a dozen previously unknown peaks were discovered beneath the waves—some up to 10,000 feet (3,000 meters) tall, according to the British Antarctic Survey. The volcanoes were found near the U.K. territories of the South Georgia Islands and South Sandwich Islands. Read about it here in Nat Geo:  http://news.nationalgeographic.com/news/2011/07/110715-undersea-volcanoes-antarctica-science-tsunamis/?source=email_gg

Supervolcano

Supervolcanos produce eruptions with ejecta greater than 1,000 cubic kilometers (240 cubic miles) – thousands of times larger than most historic volcanic eruptions.  Supervolcanoes occur when magma rises into the crust from a hotspot but is unable to break through that crust until pressure builds to a phenomenally high level.  Yellowstone National Park is a supervolcanoContinue reading “Supervolcano”