Green Options

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Probably you missed it, but last week there was a fascinating interview on the NPR program Talk of the Nation. The segment featured a scientist named David Goldberg, who answered questions about his research concerning the plausibility of storing massive amounts of carbon dioxide in basalt formations deep below the earth’s oceans.

In a paper that is available online and will be published in an upcoming issue of The Proceedings of the National Academy of Sciences, Goldberg and his colleagues write about how a basalt formation off of the coast of Oregon and Washington could potentially store anywhere from 120-150 years of carbon produced by the United States in its cavities (assuming current U.S. emission rates do not increase).

While initially I was extremely skeptical of this idea (because I thought that it might cause all kinds of unintended ecological havoc), by the end of the interview, I was somewhat more optimistic.

Converting the U.S.’s ample and renewable volumes of cow manure into biogas could provide as much as 3 percent of the nation’s electricity needs, say two researchers at the University of Texas at Austin.

In a new study published in the online journal Environmental Research Letters, Amanda Cuéllar and Michael Webber conclude that harnessing the full potential of cow poop power could not only help generate as much — or more — electricity as wind and solar power do today, but could greatly reduce greenhouse gas emissions.

Scientists in California are setting out to create a new kind of agriculture: farming for carbon capture on degraded land in the Sacramento-San Joaquin River Delta.

The concept works like this: researchers will plant things like cattails and tules (a type of rush that grows in freshwater marshes) in parts of the delta that have been subsiding and giving off greenhouse gases thanks to unsustainable agricultural practices in the area. Over time, the marsh plants will reproduce, die, decompose and rebuild the region’s peat soils … all while also soaking up carbon dioxide and creating new, sustainable wetlands.

A Superior Court Judge in Fulton County, Georgia has ruled that construction of Dynegy’s Longleaf plant be halted until it is assured the plant will limit the amount of carbon dioxide it releases.

The original permit would have allowed the plant to emit 9 million tons of carbon dioxide annually, something the court said was unreasonable.

The court cited the Supreme Court’s 2007 ruling recognizing that carbon dioxide is a pollutant under the federal Clean Air Act.  It’s the first time any court has applied the ruling to an industrial source.

Commenting on the ruling, Bruce Nilles, director of the Sierra Club’s National Coal Campaign said:

“Coal-fired power plants emit more than 30% of our nation’s global warming pollution.  Thanks to this decision, coal plants across the country will be forced to live up to their clean coal rhetoric.”

Looking for ways beyond changing lightbulbs and taking the train to help reduce your carbon footprint? Turns out we all could make a big difference in greenhouse gas emissions by not throwing out so much trash and composting our food waste.

That’s the message from “Stop Trashing the Climate,” a report prepared by The Institute for Local Self-Reliance, the Global Alliance for Incinerator Alternatives (GAIA) and Eco-Cycle, a non-profit recycler. The study finds that waste prevention and increased recycling and composting could reduce as many greenhouse gas emissions as are produced by 21 percent of the U.S.’s 417 coal-fired power plants.

I found it interesting – in a report published by the BBC – that the scientist who originally coined the phrase “global warming” is backing a radical solution to stem further damage to the planet caused by CO2.

Speaking at the Hay Literary Festival in Powys, Wales, Wallace Broecker suggests the way forward must surely lie with the construction of millions of “carbon scrubbers.”

These carbon scrubbers would be giant artificial trees that would pull CO2 from the atmosphere via a specially designed plastic and the gas would either be liquefied under pressure to be pumped underground or converted to mineral.

The accumulation of carbon dioxide in our atmosphere can be a difficult concept to visualize (maybe something to do with the fact that CO2 is invisible). So if you’re a visual learner like me, you’ll want to watch this short from the Energy Saving Campaign [45 seconds].

Residents of Washington, Oregon, and Idaho are outpacing the national average decline in gas consumption, according to a new report by the Sightline Instutute.

In the last 8 years, residents of these states have cut back by about a gallon per week, for a total gas consumption reduction of 11%. In the Pacific Northwest, gas usage has fallen to its lowest level since 1966, while CO2 emissions from gasoline have fallen by six-tenths of a ton per capita since 1999.

Pretty cool: two separate groups of researchers at the annual meeting of the American Chemical Society have outlined a way to use carbon dioxide emissions as a starting material for making CDs, DVDs, beverage bottles and other polycarbonate plastic items. “Using CO₂ to create polycarbonates might not solve the total carbon dioxide problem, but it could be a significant contribution,” says researcher [...]

Human exhalations are contributing to the ongoing increase in atmospheric carbon dioxide levels that are driving climate change, according to a new study released today from the University of Northwest Florida (UNWF).

The four-year-long study by atmospheric scientist Lawrence Meany concluded that human respiration and conversation could be responsible for up to 12 percent of the greenhouse gases entering the atmosphere every year. And, Meany discovered, that percentage appears to be growing.

Got some bad news for all those countries trying to hammer out a successor to the Kyoto Protocol: aiming for carbon dioxide emissions reductions of 25, 50, even 75 percent in the coming decades ain’t gonna cut it.

The only way to stabilize Earth’s climate, according to new research, is to cut carbon emissions to zero … and to do it quick.

Climate [...]