Friday, May 15, 2009

Angry Ramblings of a Science Nerd

I agree with my classmate (at Lauren's Gov't blog) that there is no such thing as clean coal. However, what is the point of all this political maneuvering and cash incentive to drive a process that IS NOT POSSIBLE? It reminds me of the time that Sen. John McCain (on the campaign trail) offered the same amount of money to anyone who could develop “a battery package that has the size, capacity, cost and power to leapfrog the commercially available plug-in hybrids or electric cars." Funny how nothing came of that $300 million, either. Common logic maintains that if someone was able to figure out HOW to capture and sequester one of the smallest and most dangerous molecules in our atmosphere . . . they would have done it already.

But let’s go with it. Let’s imagine that the first step is refined and we can now catch all the carbon dioxide pouring from a smoke stack as we burn some coal. Now we plan on . . . burying it? I get SO tired of this old standby. Burying something on our own planet is not getting rid of it. When the only option that chemists and physicists can come up with is “Eh, we’ll bury it,” that means the problem is not solved. Not only is it unsolved, now it’s a problem for future generations that will surely compound itself in the intervening years. Frankly, it is absurd to me that our lawmakers would rather bury radioactive waste and greenhouse gases than realize where our petroleum road is leading us and start investing in different avenues of energy production. I get it lawmakers, general public. You are comfortable with coal, with oil. Unfortunately, these things have gotten us where we are now – on a planet that (according to some) has already moved beyond the tipping point concerning climate change. I think my ears would perk up if someone, anyone would take the sci-fi route and suggest dumping the CO2 in deep space - not that trashing space is any more probable or desirable, but at least it would involve a new story line.

We still have not addressed the CO2 pouring from the vehicles that unearthed and transported the coal, or the way in which modern coal is extracted. Watch this video for that argument.

Last, but not least, the logistics of the burying. The first time I heard the game plan for sequestered carbon dioxide, I knew it was impossible. It seems even more insidious, and blatantly pandering, to distract the layman with promises of more oil from hard to reach places in an attempt to bypass any explanation of how they will keep the CO2 below ground once injected.

Let me briefly paint a picture for you about carbon dioxide. It’s a very small molecule, and even though it has one carbon at its center, it’s technically not an organic molecule. Animals breathe it out as a waste product of cellular metabolism. Plants breathe it in, separate the carbon from its two oxygens, release these oxygens into our atmosphere, and fix the carbon into long organic chains that comprise wood, leaves . . . almost everything you’d see if you looked around a forest. We animals ingest this fixed carbon when we eat carbohydrates, protein, fiber, or fats and our bodies rearrange the carbon in ways that suit our internal landscape. CO2, as a waste product in our body, moves freely outward through cell membranes in the same way that O2 diffuses into our cells. Even water, sugar, amino acids, or small proteins cannot simply pass through this smallest of membranes. Without rambling on further, in what universe am I to believe that after mass quantities of CO2 are placed beneath the earth or beneath the ocean that they won’t simply diffuse back up again?? Gas molecules, by nature and by definition, diffuse away from each other continually until they are as evenly distributed as possible. (This is one reason why smog is everyone on the planet’s problem, not just the people who live in the city.)

I could expound upon the perils of injecting it below the sea, having it diffuse through the ocean, and thus acidifying the ocean, but I won’t. This clean coal nonsense is denial – denial that the ways the rich have become uber-wealthy will not continue to make the lucky few even wealthier. Elisabeth Kubler-Ross (doctor, scientist, educator) described the process humans use to deal with grief and tragedy as five discrete stages: denial, anger, bargaining, depression, and acceptance. They are not necessarily addressed by every person and can be experienced out of order. If Republicans are finally admitting CO2 emissions are a problem, it sounds as if they’re vacillating between denial and bargaining. Personally, I’m alternately angry and depressed when I read “science” along the lines of clean coal. What will it take to get this country to accept that alternative energy forms are the only way to proceed from here?