Saturday, November 14, 2009
Tuesday, November 10, 2009
Bravo x 3
- Thomas Friedman on the three bombs (nuclear, climate, debt). Wise words. (Hat tip to Cathy Manduca, via the Earth and Mind blog)
- Betsy Kolbert on how the Internet enables non-rational thinking, from last week's New Yorker.
- And another one from Ms. Kolbert, on the 'geoengineering solution' for climate change, from this week's New Yorker. (It's a review of both Superfreakonomics and Al Gore's new Our Choice, and guess how she feels about those two books? Hint: she uses the word "horseshit" several times, and she's not referring to Mr. Gore.)
Labels: blogs, climate change, economics, global warming, politics
Friday, October 30, 2009
Recommendation: RealClimate takes on Superfreakonomics
Labels: books, climate change, global warming, politics, tech
Tuesday, October 13, 2009
Steve Fetter: movin' on up!
Labels: climate change, maryland, meetings, politics
Tuesday, September 29, 2009
Today's recommendations
Elizabeth Kolbert on getting things moving re: climate policy.
The volcanological blogs are all agog over tephra and teeth.
Lockwood tears into sloppy "press release" style "journalism."
Labels: blogs, climate change, evolution, politics, science and society
Tuesday, August 18, 2009
Two brief climate notes
Great resource. (For those who love to wallow in data and want the freshest graphs for their students.) Hat tip to ClimateSight.
Labels: climate change, global warming, politics
Tuesday, August 11, 2009
Some more recommendations
Weather vs. climate (Surprising Science, a Smithsonian blog)
The new Wooster Geologists blog, featuring some awesome imagery of the Canadian Rockies.
Some advice about finding the right geology grad program for you (from Christie at the Cape)
Labels: climate change, global warming, politics, websites
Monday, August 10, 2009
Good stuff from the past week
The geography of tapirs, from the Why Evolution Is True blog.
The declining emphasis on literacy in our society, from Alternet.
Women geoscientists who read and/or write blogs: complete this survey!, from Kim.
Outcropedia, a new web project to catalog and share key outcrops.
Climate change graph jam, from Tamino. (With follow-ups from Lockwood)
Skeptics & athiests visit the Creation Museum. (ABC News)
Labels: blogs, evolution, graphics, humor, maps, politics, websites
Wednesday, April 15, 2009
Recent reads
Al Gore's The Assault on Reason:
A scholarly work on the declining role of thoughtful, logical, reflective, searching thinking in the public sphere. Gore remains upbeat but flummoxed as to how many people buy into evidenceless claims, and pins a lot of the blame on TV, which is "a one-way medium." Gore's current gig (other than promoting awareness of climate change issues) is running a TV channel where users submit content, and he sees this as the modern-day equivalent to revolutionary-era pamphleteering. If Thomas Paine were alive today, Gore thinks he would opt to express himself on Current TV. The book is a good read (I'm a very sympathetic reader, it should be noted -- my opinion is that if the 2000 election had gone to Gore, the world would be in a much better place), but its pages feel a little dated, written as they were during the fifth/sixth years of the G.W. Bush presidency. There's an ominous undercurrent that has evaporated a bit in the present Obama era. Doubtless the book would read differently if it were penned today.
Alan Moore's & Dave Gibbons' Watchmen:
The graphic novel which provided the inspiration (and pretty much the screenplay/storyboards) for the recent blockbuster movie of the same name. I haven't read a comic book in a long time, and a graphic novel... Well, I think this was the first. [Does that make it the 'best graphic novel I've ever read'?] It was really entertaining and full of the same interwoven set of plot elements and 'easter eggs' that makes watching the television show LOST such an intricate, engaging exercise. If you're not already familiar with it, it envisions an alternate 1985 where Richard Nixon is still president of the US, and we're on the brink of nuclear war with the Soviet Union, and costumed 'super'heroes (really just masked 'adventurers') are outlawed. Some of these 'heroes' are really psychos, and others merely emotionally/psychologically damaged goods. It's interesting to see these do-gooders wrestle with life's tricky bits, while simultaneously attempting to avert World War III.
I also read Tyler Volk's CO2 Rising, but that one deserves a blog post of its own to discuss... Stay tuned.
Wednesday, March 18, 2009
Clean Coal, Coen style
Heh! This "clean coal" debunking campaign is directed by the Coen Brothers.
And another:
Behind the scenes:
Labels: climate change, CO2, coal, global warming, humor, politics
Sunday, March 15, 2009
Route 55, West Virginia
As you can see, this is part of the Valley & Ridge province, an area of the country defined by Paleozoic rocks that were folded and thrust-faulted during the Alleghenian phase of Appalachian mountain-building. Recently, a new road has been constructed traversing these valleys and ridges. It's a bit of a boondoggle, a pet project of West Virginia senator Robert Byrd which funneled federal dollars into the Mountain State, ostensibly to make it easier for the chicken farmers of Moorefield to get their birdie bits to market on the east coast.
This image ought to give you a sense of the project's scale (big bridge), and how much use it gets (no one on the bridge):

But the U.S. taxpayer's loss is the geologist's gain... There are some pretty spectacular new exposures of Valley & Ridge rocks along the new route 55. Here's the NOVA van parked at an outcrop of Tuscarora Sandstone that is arched up into a broad anticline. Again, notice how few people are driving on route 55 here:

Ooh, look: heavy traffic!

Contact between the lower Tuscarora Sandstone (a Silurian-aged extremely pure quartz sandstone, variably fused to quartzite), and the overlying (darker-colored) formation, which is either the Rose Hill Formation or the Mackenzie Formation at this location:

We found oodles of cool trace fossils:



But it wasn't just sedimentary layers. There were also some cool tectonic structures, like this joint in the Tuscarora, showing a beautifully developed hackle fringe:

Here's some "pencil cleavage" where fine-grained shale develops cleavage that intersects the planes of fissility, causing it to fracture in long slivers:

I slammed on the brakes for this one: an awesome anticline...

I forced David and the students to act out the orientation of the bedding planes at this anticline:

Honors student Jason points out a small thrust fault in the outcrop above him: You can see the offset in a greenish/gray shale layer:

In case it wasn't obvious above, here's a zoomed-in shot, with the offset layer highlighted (the miracles of Photoshop!) and the fault labeled:

We all had a grand day outside, and the rain held off until our return trip, which was pretty great. Thanks to David for showing us these rocks, and thanks to my students for being smart and inquisitive and into field trips.
Labels: appalachians, devonian, field trips, fossils, mountains, nova, politics, primary structures, sediment, silurian, structure, teaching, valley and ridge, west virginia
Friday, March 6, 2009
Spend Virginia's stimulus funds
(The Washington Post reports on a decaying bridge in Arlington County as a good candidate - I drove under this bridge on Tuesday morning. Thursday morning at 4am, softball-sized chunks of concrete fell off the bottom onto Route 50. Yikes.)
Monday, February 9, 2009
Tidwell video
Labels: action, climate change, global warming, maryland, nova, podcasts and vodcasts, politics, virginia
Wednesday, February 4, 2009
"We are all Smith Islanders"
Thanks to archive.org, you can actually watch the movie in low resolution on the Internet. Google video also keeps a copy available.
Or, if you'd prefer it in higher resolution (on DVD), you can find it at the NOVA library.
Labels: action, climate change, dc, global warming, maryland, movies, nova, politics, virginia
Tuesday, January 27, 2009
Jill Biden joins the staff of NOVA
Welcome, Dr. Biden!
Sunday, January 25, 2009
S-22 to designate Glacial Lake Missoula trail
The Ice Age Floods National Geologic Trail Designation Act (S. 268 and H.R.
450), would create a trail to document the catastrophic flooding that stretched
across parts of Montana, Idaho, Oregon, and Washington during the last Ice Age.
The designation of an Ice Age Floods Trail follows the recommendations of a 2001
study headed by the National Park Service which found the area suitable for
addition into the National Park System.
This part of the bill carries a possible pricetag of $12 million, with $2 specifically for the visitor center. Though there's no way the trail would be done by this summer, Glacial Lake Missoula's geologic signatures will be some of the highlights planned for this summer's Regional Field Geology of the Northern Rockies class.
Read more about it in this article in the Missoulian.
Hat tip to Babak R. for letting me know about this.
Labels: glacial landforms, glaciation, lakes, montana, national parks, politics
Wednesday, January 21, 2009
Inauguration photo... from space

From the GeoEye satellite, via Google Earth, via the Google Earth blog.
Labels: dc, politics, satellite imagery
Tuesday, January 20, 2009
Live photos from the Inauguration

Monday, January 19, 2009
Maryland's state fish, Virginia's state bat
We have a state dog and a fish and a bird.
And of the fossil I'm sure you have heard.
So why not a bat?
What's wrong with that?
The state beverage is no more absurd.
For some reason, I hear this limerick in my head in Carl Kasell's voice...
Labels: birdies, critters, fish, fossils, mammals, maryland, politics, virginia
Wednesday, January 14, 2009
Nope

Labels: art, climate change, coal, environmental, global warming, politics
Saturday, December 20, 2008
Drilling (baby, drilling) for oil in Virginia
Labels: environmental, news, oil, petroleum, politics, virginia
Thursday, December 18, 2008
Giant map of DC
Wednesday, December 17, 2008
More budget cuts for Virginia schools
"In higher education, our October actions reduced schools' 2009 base budgets by 5 to 7%. For 2010, I have increased the reductions to 15% for all schools, except the community colleges and Richard Bland, which will have the reduction level increased to 10%."
Especially in light of what I posted earlier today, this does not bode well.
Full text of the governor's remarks here.
Community colleges feel the squeeze
Thursday, November 6, 2008
Election maps
Four years ago, this website gave me some solace in looking at the breakdown between "red" and "blue" states. Now the author, Mark Newman, has performed some similar cartography on the 2008 presidential election results. Tuesday, November 4, 2008
Friday, October 31, 2008
Hummers: making a difference
Labels: climate change, environmental, global warming, humor, oil, politics
Friday, October 17, 2008
Friday morning roundup
McCain and Obama having fun: After all the rancor, this makes me happy.
If you're planning on going on the GSW Fall Field trip, let them know ASAP. They need a headcount.
The slate of speakers has been announced for next week's GSW meeting: Leonard Konikow, U.S. Geological Survey, Reston: "Ground-water depletion: National assessment and global implications;" Dionysis Foustoukos, Carnegie Institution of Washington Geophysical Laboratory "Energy sources in dark abyssal waters;" and Igor Puchtel, University of Maryland, College Park "Re-Os isotope systematics and HSE abundances of the 3.5 Ga Schapenburg komatiites, South Africa." 8pm next Wednesday at the Cosmos Club. Free and open to the public; refreshing beverages served starting at 7:30pm.
Virginia's a swing state... unbelievable and amazing.
Radioactive granite countertops cartoon caption contest reminder.
JPL has launched a new climate site:
...And congratulations to Walter Alvarez for being awarded the Vetlesen Prize.
That's all I've got. Have a good Friday!
Wednesday, October 1, 2008
Cinematic maps
Maintained by the Digital Scholarship Lab at the University of Richmond (Virginia), the website makes us of so-called "cinematic maps" which show how geopolitical data have changed over time for the lower 48 United States.
The different maps tell stories over time; I think it's a cool display of interesting information. However, a major omission is the exclusion of Alaska and Hawaii as contributing U.S. states. Check it out; let me know what you think.
Thanks Judith G. for alerting me to it!
Wednesday, September 24, 2008
Climate: Obama vs. McCain
Labels: climate change, news, politics
Sunday, May 18, 2008
Saturday's hike (NOT on the BGT)
We walked another trail, the Berma Road, instead, which parallels the Washington Aqueduct from Great Falls down to the Old Anglers Inn. Along the way we saw plenty of metagraywacke, migmatite, and granite intrusions. Here's me pretending to 'hold up' up a massive metagraywacke xenolith in the Bear Island Granite:
We also saw a lot of structure, including boudinage, folds, and faults. While we didn't get to see some of the more striking features of the Billy Goat Trail proper, we made it work okay. And everybody in the class had a great sense of humor in regards to being kept off the BGT itself.
I thought this was a funny form of political protest:
Both photos by Audubon student Paula. Thanks, Paula!
Labels: granite, national parks, plutons, politics
Monday, March 10, 2008
Musings on zero carbon emissions
Anyhow, the Post article reminds me of something I've been mulling over, and meaning to post since then.
I view climate change from two main perspectives: (1) as an earth scientist, and (2) as a citizen. As a scientist, I find it fascinating to watch how all this plays out. As a scientist, it presents an opportunity for learning, for greater understanding of how the Earth works. You see, geologists are limited scientifically: we often don't have the option of running controlled experiments on our topics of study: continents are too big, the spans of time are too vast. But with global warming, we have a colossal experiment that's being run, even though no one intended it as such. I offered this quote back in January, and I think I'll put it up again to give some context to my "scientist views climate change" perspective:
- "Human beings are now carrying out a large scale geophysical experiment of a kind that could not have happened in the past nor be reproduced in the future. Within a few centuries, we are returning to the atmosphere and oceans the concentrated organic carbon stored in sedimentary rocks over hundreds of millions of years."
-- Roger Revelle and Hans Seuss, 1957
In other words: The timescale of carbon storage is ~7 orders of magnitude larger than the timescale of carbon release. That's a large difference. Humans are thus changing the atmosphere's composition; but what effect will it have on the climate? Those who practice science can make some logical predictions based on our understanding of the natural world:(A) It has been demonstrated for over a century that certain gases, like CO2, absorb energy in certain wavelengths of the electromagnetic spectrum. The gases that absorb in the infrared portion of the spectrum are the ones we call "greenhouse gases," since the majority of the energy re-radiated upwards from the Earth's surface is infrared, and absorption of this energy keeps the planet warmer than it would otherwise be.
(B) It has been demonstrated that in the presence of oxygen, biogenic carbon can be oxidized to release energy. Whether it's a campfire or gasoline (derived from petroleum derived from Paleozoic planktonic photosynthesis), organic carbon burns. When it does, carbon and oxygen combine, and CO2 is a product of the (exothermic) reaction.
(C) At numerous locations around the world, we have measured precisely the rising concentration of CO2 in our atmosphere. We have even measured precisely a corresponding decline in free atmospheric oxygen, as oxygen is consumed through the combustion of fossil carbon.
(D) These facts predict that the Earth's temperature will rise on average as a result of the greater concentration of greenhouse gases. That too can be measured, with multiple thermometers in multiple locations over a long period of time. What we find is that on average the temperature is going up (it's risen 0.7 of a degree Celsius, or ~1.4 degrees Fahrenheit over the past century), as is logically predicted by (A), (B), and (C).
So, as a scientist, I think it's really interesting: Here you've got some knowns, and some unknowns, and a logical structure linking them. Hypotheses yield predictions, and those predictions are being tested. Wow, scientist-me thinks, it's fascinating to see how the Earth system works when you alter a variable like atmospheric CO2 concentration.
On the other hand, I'm not just a dispassionate observer watching this all play out on an experimental planet: I'm also a person who lives on that planet and will be subject to the consequences of the experiment. It's from that perspective, the "citizen" point-of-view, that global warming scares the hell out of me. The Earth's fate is not in question here: our planet has endured far greater fluctuations in the past (both warmer and colder). The issue is for those of us who live on the surface of the planet Earth (humans and other species): as conditions change, will we be able to adapt? I'm concerned that some of the consequences are potentially too large for ecosystems to maintain their coherency. I'm worried about the huge proportion of my fellow human citizens (of the Earth) who dwell on the low-elevation coastlines of the world. The Earth will endure quite a lot of temperature variation; but I'm not sure about the organisms on its surface (of which I am one).
Last week, one story in the news was about the opening of the "Doomsday" seed vault on Svalbard. I was struck by the scientific parallels between the seed vault story and global warming, yet how very differently people were treating it. Science suggests that biodiversity is declining, and is subject to numerous threats, and we humans depend on viable seeds for our survival as a species. So, we're taking action by making this vault to keep our seed stock safe. It's totally uncontroversial. You don't see any Seed Vault Skeptics publishing editorials or holding conferences. Yet with climate change, there is a substantial voice in public life suggesting that the science is flawed, and thus that no action is required. Obviously, there's a HUGE difference between the relatively simple matter of creating a seed bunker in the Arctic and retooling the world economy's energy source, but those are both matters of political action. The science underlying each issue is strong and compelling. Whether we choose to act on the conclusions of that science is another thing: do we take action only when it's easy? Or do we take action when the science suggests that, for our own benefit as a species, we must?
Perhaps this is the third perspective with which I view climate change: as a "social scientist" intrigued would how people sort out complex issues like this. Will we be able to pull if off, as a society? Maybe it's already too late.
Some quotes from the Post article:
- "People aren't reducing emissions at all, let alone debating whether 88 percent or 99 percent is sufficient. It's like you're starting off on a road trip from New York to California, and before you even start, you're arguing about where you're going to park at the end."
--Gavin Schmidt, NASA Goddard Institute for Space Studies
- "[Global warming] is a classic inter-generational debate, where the short-term benefits of emitting carbon accrue mainly to us and where the dangers of them are largely put off until future generations."
-- Steve Gardiner, University of Washington
- "Each unit of CO2 emissions must be viewed as leading to quantifiable and essentially permanent climate change on centennial timescales."
-- Damon Matthews, Concordia University
Labels: climate change, CO2, global warming, politics
Wednesday, February 20, 2008
Only a theory
Biofuels cartoon

Thanks to John Weidner for calling this gem to my attention!
Monday, January 28, 2008
Carbon offsets reviewed in the Washington Post
In today's issue of the Washington Post, an article by David Fahrenthold reviews the mixed bag of results that the House of Representatives has achieved in making their half of Capitol Hill carbon neutral. In November, they spent about $89,000 to offset their unavoidable carbon emissions by paying for agricultural acts that sequestered an equal amount of carbon elsewhere. All well and good, at least in theory, but carbon offsetting is a new and weird commodity. It doesn't always work that well. Some of the money went to farmers in North Dakota, to pay them to practice a certain soil conservation technique they were already doing. Some other funds went to a power plant in Iowa that was supposed to produce cleaner energy -- during a trial run that ended a year before the money got there.
Driving around town, I see a decent minority of cars sporting a bumper sticker that says "This car's CO2 offset by TerraPass" or something similar. Despite my strong concern over climate change and the clear connection between CO2 emissions and global warming, I have yet to invest in one of these balancing schemes. I think it's just that it's an unproven system. Mainly through my own ignorance of their practices, I'm not convinced that companies like TerraPass aren't just taking people for a ride. I think that if the U.S. government had some sort of verification procedure whereby carbon offsetting companies could be certified, then I would be more inclined to trust them and get on board. But, as the Post article elucidates, we don't really regulate this business yet in America. They regulate the heck out of it in Europe, but also with mixed results.
It should be noted that despite these examples of offsetting "flubs," the House achieved some real progress with some simple acts that conserve energy: they switched to compact fluorescent light bulbs and ordered the Capitol Power Plant to burn natural gas instead of coal.
Labels: action, global warming, politics






