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You are browsing the archive for natural hazards Archives - AGU Blogosphere.

22 July 2022

12.5-A podcast of ice and fire

Cool off from the summer heat with our next six-part miniseries all about ice – from those who call it home to its use as a tool in science.

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1 July 2022

10-Extinctions: Showdown of the giant space rocks

Dani DellaGiustina is one of the youngest leaders of a NASA mission, and she was in charge of image processing for OSIRIS-REx before she even got her PhD. OSIRIS-REx is a spacecraft sent to study asteroid Bennu and scheduled to return a sample to Earth in 2023.

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24 June 2022

9-Extinctions: Not your science fair volcano

For many of us, the word “extinctions” conjures up images of dinosaurs, asteroids, and (maybe?) volcanos. And while that last point did likely play a role in the demise of the dinosaurs, volcanos in their own right can go extinct. In this episode, we chatted with volcanologist Janine Krippner, Honorary Research Associate at the University of Waikato, about what exactly makes a volcano extinct, the difference between volcanic ash and smoke, …

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10 June 2022

7-Extinctions: Dinosaurs, a Big Rock, and…Climate Change?

When you hear the word “extinction,” chances are you probably think of the extinction of the dinosaurs and a big rock. But did you know that there were other factors at play that lead to that extinction including volcanos and sea-level rise?

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3 June 2022

6.5-Extinctions: Dinosaurs, volcanoes, the space station, oh my!

Join us for our next six-part miniseries on Extinctions as we learn about the demise of the dinosaurs, what makes a comet “extinct,” the Cambrian and Triassic periods, volcanoes, and the aforementioned (planned) fiery end of the International Space Station!

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22 November 2021

Staff Picks: Toxic City Under the Ice

In 1959, the United States built an unusual military base under the surface of the Greenland ice Sheet. Camp Century was a hub for scientific research, but it also doubled as a top-secret site for testing the feasibility of deploying nuclear missiles from the Arctic. When Camp Century was decommissioned in 1967, its infrastructure and waste were abandoned under the assumption they would be forever entombed beneath the colossal sheet of ice.  

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10 November 2021

AGU Endorses the National Wildland Fire Risk Reduction Program Act

On 5 November 2021, AGU sent a letter to Representatives Lofgren, McNerney, Perlmutter and Bonamici endorsing the National Wildland Fire Risk Reduction Program Act.   On behalf of the American Geophysical Union (AGU) and our community of 130,000 worldwide in the Earth and space sciences, I am writing to thank you for crafting and introducing H.R.5781, the National Wildland Fire Risk Reduction Program Act, and to offer AGU’s official endorsement for this …

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26 October 2021

AGU endorses the PRECIP Act

On 25 October 2021, AGU sent a letter to Representative Mikie Sherril, Chair of the House Science, Space, and Technology Subcommittee on the Environment, endorsing the the Providing Research and Estimates of Changes in Precipitation (PRECIP) Act.    On behalf of the American Geophysical Union (AGU) and our community of 130,000 worldwide in the Earth and space sciences, I am writing to thank you for introducing H.R. 1437, the Providing …

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AGU endorses the FLOODS Act

On 25 October 2021, AGU sent a letter to Congressional leadership in the House and the Senate endorsing the the Flood Level Observation, Operations, and Decision Support (FLOODS) Act and applauds their commitment to improving communication about the risks of extreme weather events so that communities can become more resilient in the face of climate and other hazards.     On behalf of the American Geophysical Union (AGU) and our community …

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1 October 2021

AGU position statement on resilience open for member comment

Starting today, AGU members have until 31 October to comment on revisions to a position statement outlining the role of scientists, policymakers and communities in building resilience to disruptions. AGU encourages all members to read and comment on the position statement because the expert writing panel relies on this feedback. Resilience is the ability of systems — including people — to anticipate, respond, recover and adapt to disruptions, which can …

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7 September 2021

Staff Picks: The Johnstown Flood

The Johnstown Flood occurred on May 31, 1889, after the failure of the South Fork Dam, which is located on the south fork of the Little Conemaugh River, 14 miles upstream of the town of Johnstown, Pennsylvania. The dam, constructed to provide a recreational resource in part to support The South Fork Fishing and Hunting Club, broke after several days of extremely heavy rainfall that liquified the dam and blew out the earthen structure, resulting in a …

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16 August 2021

Staff Picks: Parking Lot Lava

In a parking lot behind the Comstock Art Facility at Syracuse University, geologist Jeff Karson and sculptor Bob Wysocki cook up something almost unimaginable – homemade lava. Using a gas furnace the size of a small truck, the two professors melt gravel typically used for roadbeds into hot molten rock that they pour onto sand to recreate natural lava flows seen in places like Hawaii, Iceland and Italy.

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18 March 2021

AGU’s 2021 Policy Priorities   

As a scientific society whose members’ research and interests span the universe, AGU’s science policy interests are just as vast – from scientific integrity to funding for science to building resilience to natural hazards. In 2019, AGU began developing annual policy priorities to help focus our advocacy work and speed the advancement of important science policy and legislation. For example, last Congress by focusing on our policy priorities AGU was able to secure passage of the Space Weather Research …

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16 November 2020

The Western US in Flames – What’s Going On?

by: Shane Coffield, PhD Candidate in Earth System Science at UC Irvine   It feels difficult to believe that the Australian bushfires happened just earlier this year. Since then, a pandemic, social unrest, and a pivotal U.S. election have dominated the news cycle.  Through all of this, however, the climate crisis hasn’t taken a break. The wildfires in the Western US are a stark reminder of that truth. They are …

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13 July 2020

Escape from Thera

About 3,600 years ago, a colossal volcanic eruption blew apart the Greek island Thera, now the popular tourist destination known as Santorini. Falling volcanic rock and dust buried the Bronze Age settlement Akrotiri, on the south side of the island, preserving multi-story buildings, frescoes, tools, furniture and food, until archaeological excavations uncovered them in the last century, much like the eruption of Vesuvius in 79 CE famously buried Pompeii and Herculaneum. But unlike the Roman cities, Akrotiri has a notable lack of bodies.

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15 June 2020

Instruments of Unusual Size

Volcanic craters could be the largest musical instrument on Earth, producing unique sounds that tell scientists what is going on deep in a volcano’s belly.

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27 April 2020

New Mexico badlands help researchers understand past Martian lava flows (video)

Planetary scientists are using a volcanic flow field in New Mexico to puzzle out how long past volcanic eruptions on Mars might have lasted, a finding that could help researchers determine if Mars was ever hospitable to life. People don’t usually think of New Mexico as a volcanically active place, but it has some of the youngest (geologically speaking) large lava flows in the continental United States.

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24 March 2020

Et tu, Etna?

In 44 BCE, a momentous event occurred. Somewhere on Earth, a volcano erupted—one of the largest of last 2,500 years terms of climate impact. Traces of the eruption can be found in ice cores from Greenland and Antarctica, in signs of cold weather in the growth rings of trees around the world, and records of famine and agricultural disaster from Egypt to China. The eruption caused global climate effects lasting several years.

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11 February 2020

Climate change could trigger more landslides in High Mountain Asia

More frequent and intense rainfall events due to climate change could cause more landslides in the High Mountain Asia region of China, Tibet and Nepal, according to the first quantitative study of the link between precipitation and landslides in the region.

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19 December 2019

Survey reveals low awareness of volcanic hazards in Australia

On December 9, several Australians were among the dozens of tourists who were killed, injured, or went missing after a deadly eruption on Whakaari/White Island in New Zealand. Whakaari/White Island has seen more volcanic activity in the past 10 years than neighboring Australia has seen for 5,000, but according to volcanologists, the country is not free from the risks of a potential eruption. And according to a new survey, Australian citizens are mostly unaware of their country’s potential volcanic hazards.

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