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Friday fold: Point Arena, California

Fri, 05/31/2019 - 6:33am

It’s Friday, and I’m grateful that Bret Leslie of the NRC has stepped up with a Friday fold contribution from coastal California: Bret says this outcrop is: from my trip last month to the Sonoma and Mendocino coast. The first is the cliff below the Pt. Arena lighthouse. The marine deposits (now a marine terrace) are unconformably on top of the folded Miocene sedimentary rocks in the second photo. Here …

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E18 – Riders on the Storm

Fri, 05/31/2019 - 4:30am

Few natural phenomena are more difficult to study than tornadoes. They’re short-lived, their locations are notoriously hard to predict, and getting close enough to observe them is both challenging and extremely dangerous.

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How many Alaska glaciers? There’s no easy answer

Thu, 05/30/2019 - 10:53am

Not long ago, a glaciologist wrote that the number of glaciers in Alaska “is estimated at (greater than) 100,000.” That fuzzy number, maybe written in passive voice for a reason, might be correct. But it depends upon how you count.

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High resolution Planet Labs SkySat image of the Joffre Peak landslides

Thu, 05/30/2019 - 4:43am

A high resolution Planet Labs SkySat image of the Joffre Peak landslides has been captured, shedding light on the velocity of the flows.

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Using the past to unravel the future of Arctic wetlands

Wed, 05/29/2019 - 8:50am

The study found that under 21st century warming conditions and with adequate moisture, certain Arctic wetlands may transition into peatlands, creating new natural carbon storage systems and to some extent mitigating carbon losses from degrading peatlands in southern regions.

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The Baiyun–Liwan submarine slide: an ancient giant landslide in the South China Sea

Wed, 05/29/2019 - 2:04am

In a new paper, Zhu et al. (2019) report the discovery of the giant Baiyun–Liwan submarine slide, which covers an area of c.40,000 sq km in the South China Sea

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Students in Science Policy: Science Policy Fellowships

Tue, 05/28/2019 - 1:00pm

Note: Katie was interviewed prior to the start of the 116th Congress.   Are you nearing the end of your degree and not sure what to do next? A great way to jump into the science policy world is through the AGU Congressional Science Fellowship. Every year AGU sponsors a fellow to work in the offices of either an individual member of Congress or on a committee for a one-year …

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Sols 2419-2421: Easy Driving

Tue, 05/28/2019 - 1:00pm

We've left multiple tracks across the cobblestone plain of Glen Torridon. This image shows our current view to the northeast, with the slope of Mount Sharp on the right and the scarp of Vera Rubin Ridge on the left.

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Join the Effort to Improve the Health of Our Oceans

Tue, 05/28/2019 - 12:48pm

Susan Lozier, AGU’s President-elect, encapsulated the forward-looking spirit and dialogue of global ocean experts earlier this month: As an oceanographer, I view the upcoming United Nations Decade of Ocean Science for Sustainable Development as an incredibly important opportunity for the global community to focus on the health of Earth’s oceans. Many recent studies have revealed the negative effects humans have had on the oceans, from the sea surface to the …

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College Graduates Have New Decisions to Make

Tue, 05/28/2019 - 9:13am

“Now what?” This is the question many recent graduates are facing today. They may not always see the completion of their undergraduate studies as reaching the finish line. For these former students, there are three primary perspectives among them: those continuing their education, those entering the workforce immediately, and those that choose to take some time off before making decisions about their long-term future. Earning a bachelor’s degree is no …

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Sulmeneva Bay Glacier Retreat 1990-2018, Novaya Zemlya

Tue, 05/28/2019 - 8:07am

Sulmeneva Bay Glacier in Landsat images from 1990 and 2018.  Red arrow is the 1990 terminus location, yellow arrow the 2018 terminus location and pink dots the snowline. Here we examine an unnamed glaciers, referred to here as Sulmeneva Bay Glacier, that terminated in a piedmont lobe near the northern shore of Sulmeneva Bay and just east of Lednikovoye Lake in central Novaya Zemlya. Sulmeneva Bay is on the west …

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Gongo Soco mine: another potential tailings dam failure in Brazil

Tue, 05/28/2019 - 2:29am

In Brazil another tailings dam, at the Gongo Soco mine in Barão de Cocais to the east of Belo Horizonte, is at risk of failure due to a rock wall collapse.

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Revealing the baseline of geoscience outreach

Mon, 05/27/2019 - 8:30am

Geoscience has been one of the least diverse STEM fields for nearly four decades, perhaps in part because our science isn’t making it to those who are outside our departments and institutions. In the era of climate change skepticism, geoscientists who practice science communication could provide immense value to their local and global communities by serving as Earth experts who can empower non-scientists to engage in reasoning and analysis in all aspects of life.

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IPBES Global Assessment Report – Communicating Hope in a Sea of Despair

Sun, 05/26/2019 - 11:09pm

I see myself bringing up this report early and often to students to introduce options and actions instead of doom and gloom. A message of hope will make for a much greater level of engagement and productivity. Let’s keep the conversations going.

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