As well as the two of us, there are many other earth, ocean and space scientists using Twitter these days: The AGU have more than 300 on their list. Listed below are the most interesting things we came across last week.
Blogs in motion
- Check out two new geoblogs: @leilageologist will be writing on Precambrian paleontology, and @Polar_Gal will (unsurprisingly) be sharing polar science with the world.
- Thanks to the efforts of @anatotitan, the Boneyard Blog Carnival is back! Check out Love in the Time of Chasmosaurs for the details.
- Presenting the firehose of all bloggy firehoses: http://scienceblogging.org. It features the all-geo feed, and they are welcoming feedback on how to improve it.
- Seismic activity at Eyjafjallajokul ‘petering out’. Eruption not over, but the main risk is now mud flows.
- Great photo-essay of recent lava flows on Hawaii, with the pictures of lava reaching ocean being particularly epic.
- Time-lapse footage of collapse of a recently formed lava bench/delta on Hawaii.
- Finally had time to read epic guest post at Eruptions: Mt Etna’s complex geodynamic setting & eruptive history
(Also see Part 2 and Part 3 in the series.)
- Very enjoyable post from http://geotripper.blogspot.com/2010/08/dispatches-from-road-exploring-koolau.html
- Live underwater video feed from top of an active underwater volcano 400 km west of Newport, OR
- Rwanda Taps Volcanic “Exploding Lake” Kivu for Power. They are using the methane, and putting carbon dioxide and water back in the lake.
(via @lisduarte, @inhabitat)
Earthquakes & Tectonics
- Slow-slip events beneath Cascadia help seismologists to map the extent of the locked subduction thrust (capable of generating M 9.0 earthquakes) but may also stress it and make it more likely to rupture.
- A nice animated map of earthquakes in Iceland associated with eruption of Eyjafjallajokul.
- A note on the new San Andreas Fault study that suggests it ruptures with a <100 yr recurrence interval, by one of the co-authors [with link to paper].
- Demonstrating Earthquake Effects Using Jell-O and Rice Crispy Treats [then feed students the debris?]
- Whatever Happened to Seismosaurus? A tale of reclassification w/ echos of Torosaurus/Tricerotops, but in this case it occurred without the media frenzy.
- Following the putative Cryogenian sponge fossils announced in Nature, news that an even older Cryogenian sponge fossil discovery is having trouble getting published?
- A nearly ice-free Northwest Passage:
(via @Polar_Gal, @NASAGoddard, @NASA_EO)
- A sobering point: like the amp in ‘Spinal Tap’ going to 11, climate change not just loading dice but amplifying extremes:
- Get ready for Dust Bowl 2.0 in Southwest, says Richard Seager of Columbia’s Lamont-Doherty Earth Observatory in :
(via @westcenter, @grist)
- Tipping point for Greenland ice sheet: 2-7 C. And scientists are having to pay their own airfares to monitor it.
- A nice explanation of why Antarctic sea ice is growing in a warmer world -for now.
- The most impressive Pakistan flooding images yet
Donate to help Pakistani flood victims! See InterAction’s list of aid groups
- Drowning Today, Parched Tomorrow – Pakistan needs more water supply & storage.
(via @thirstygecko, @columbiawater)
- Monsoon floods Pakistan, but no rain to be found in drought stricken West Bengal
- Human Damaged Ecosystems & Bad Land Management Amplify Killer Floods
(via @geographile, @InvasiveNotes, @BreakingScience)
- Great profile of MIT’s Charles Harvey and the complex problem of arsenic in Bangladesh’s groundwater
- New interactive map of 140 big dams planned for the Amazon
(via @WaterWired, @rivrchik, @IntlRivers)
- check out @NatGeoSociety‘s Water Footprint Calculator. In the US, most water consumption is for food production.
(via @rivrchik, @worldresources)
- Report finds ~80 percent of the spilled oil is still in the Gulf of Mexico, in contrast to US govt claims.
Meanwhile, Deep Sea News reports definitive evidence of a deepwater oil plume.
- Scottish scientists develop whisky biofuel. From the by-products, thank goodness! Provides 30% more power than ethanol biofuel.
- Interesting: broadly distributed offshore wind turbine network can largely solve intermittency problems
- Europe’s Brisk Energy Transition: 18.4% of total power generation now from renewables. Almost encouraging…
- Appeals court decision: mud from logging roads is pollution under the Clean Water Act. Are roads point sources that require a permit?
- 10s of 1000s of mud volcanoes found on Mars? Prob been inactive for a couple of billion years, but still interesting
- Callan Bentley is back in the geoblogosphere with a bang: as well as a lovely Friday fold (the first in a new weekly series), he also gives us the gorgeous deformed Purgatory congolomerate:
- Fantastic research blogging at Hindered Settling on the complexity of sinuous channel deposits in three dimensions
- Nice article on the tricky business of reconstructing Earth’s redox / oxygen history: has the Great Oxygenation Event been overstated?
- Fascinating: using prehistoric obsidian tools to trace old trade and migration routes.
- Video of frazil ice at Yosemite. Makes for very dynamic river behaviour. Amazing.
- The hidden geological history of WWI: the military advantage of holding chalk highlands in N France
- @morphosaurus gets no response to her letter to the Governor of Wyoming over the potential sale of parts of Grand Teton National Park. Perhaps we should all send a letter to Congress & Interior Secretary Salazar?
- In the dust-up between Ray ‘simulate the brain in 20 years’ Kurzweil and anyone who knows anything about biology, this comparison between his rhetoric and that of geoengineering advocates is rather telling.
(via @tvjrennie, @jrminkel)
- An imaginative visualisation tool – BBC Dimensions, lets you map notable events, thing and places onto your locale. For example, the Pakistan Floods are pretty much the length of the Mississippi.
- Some interesting musings on the link between basic research and useful technology at Shatsky Blog (complete with gratuitous Titanic reference)