Today, apart from going to a planning meeting for 350 October 24th Day of Action event in Berlin and preparing this post for Blog Action Day 2009, I also bought my ticket to Copenhagen. This has been a long time coming, as I’ve been considering the dual implications of my travel to COP-15 on climate change and on my pocketbook.

Image credit: http://www.magic-mural-factory.com/
Knowing that flying accounts for 2-3% of global CO2 emissions, I’ve been rather anti-flying in recent years. To get to Germany, of course, I had no other choice (smuggling myself onto a freight boat or getting up to Alaska and then taking the trans-Siberian train across two continents weren’t really feasible… and molecular transport does not yet exist). Once I got here and had a bit of vacation time, though, I reverted to my anti-flying ways and I decided not to fly to visit a friend in Bosnia, but to carpool to Poland for a short trip instead. Carpooling with a guy who was going to drive from Berlin to Krakow no matter what was fine: I was just cutting out a share of his emissions.
Last week, in planning my trip up to Copenhagen for COP-15, I wanted to undertake some more serious analysis of my travel options since there seemed to be no easy answer regarding the best way to get to COP.
Here’s the dilemma:
- I wanted to spend as little money as possible;
- I wanted to minimize my CO2 footprint, as always, with a little added fervor since I’m going to Copenhagen for just that reason; it would be rather self-contradictory to not consider the greenhouse gas emissions of my travel.
This of course mirrors pretty much all problems we have with transitioning away from our dirty energy economy: $$$ vs. Environment/Ethics. I wish I could always go with the option that made me feel the best, but alas, I too live in a world limited by the money I possess. (Side note: hopefully someday in my lifetime, solar flying is real and affordable.)
From Berlin, Copenhagen is just about 300 miles away or so, depending on the route you take. My options for getting from Berlin to Copenhagen (and back) with initial time & cost estimates were
- Carpooling, 6-8 hours, $60-100 (In Germany, you can search for “carpool opportunities” online and then pay the driver a fee to ride with him/her to your final or intermediate destination.)
- Flying, 3 hours (incl. transport to airport & check-in time etc.), $80-100 (incl. checked bag fee)
- Training – 7 hours, $200-350
- Busing – 7.5 hours, $60-95
- Hitchhiking – 8-10+ hours, $0
- Biking – unfortunately I’m not that fit and couldn’t miss any more days of class before the 4th of December
To be honest, when I was preparing this post last week by beginning to calculate CO2 costs, I was hoping that the math would help me justify a cheap, fast plane trip, or at least fortify my commitment to not flying with some hard numbers.
Luckily, today I found a great deal on a train ticket, just $128.44 at today’s exchange rate. This saved me from dealing with the “fuzzy math” of trying to adding up the global warming potential of radiative forcing from NOx and vapor trails from flying or the full CO2e emissions of charter buses compared to personal cars. I’m quite pleased with this outcome; train travel is widely heralded as the best form of rapid transit when it comes to environmental and climate friendliness. I don’t have to feel bad about my rather unnecessary carbon emissions from flying 300 miles and I don’t have to feel bad about not having any money for food in the world’s third most expensive city. A win for cost-consciousness and environmental-consciousness! Not to mention train travel is far more comfortable than any other form of travel that I’m familiar with.
P.S. In my search for comparative GHG emissions data for the various forms of transport, I found this great website, www.ecopassenger.org. (Unfortunately it is only really handy for trips within Europe at this time.) Here is the info they gave me regarding energy resource consumption and CO2, particulate matter, NOx, and non-methane hydrocarbon emissions.

The graphs above assume European average number of fill seats on European train and plane trips and two passengers in the car; if I up the number of passengers to three, the CO2 and Energy Consumption figures of car travel begin to be more comparable with train travel and become smaller than train travel at four or more passengers. 30 miles of ferry travel is not included in the car mileage, helping make this car trip a bit more competitive with train travel than on other routes.
Really big side note on additionality
The question here is, if I select one of these options, will the CO2 emissions from the other choices disappear? Or would my travel with those options not really be “additional” – that is, if I chose not to travel with any of the above choices, will those same CO2 emissions still exist?
Whether I fly, hitchhike, train, or bus, these people are going to be sending their vehicles off to Copenhagen no matter what and the CO2 of all options will almost certainly exist whether I’m there or not (carpool being the only possible exception). At first glance, I should not be too concerned with my CO2 impact. Sadly, it’s not so simple. I also have to consider if my choice to take (or not to take) one form of transport will increase or decrease future emissions. It’s all conjecture, but I think my decision probably has a larger impact on commercial firms (airlines, trains) than on someone who picks up a hitchhiker spontaneously. Actually, those who are driving regular carpools as a profit-seeking endeavor are likely the most affected by my decision. Since they are smaller operations, one rider makes a bigger difference; they might not make a trip at all if they don’t get a carpooler (me).
Still, you might not think that my one decision can really make a difference in cutting carbon emissions. If I don’t fly, the plane will still go to Copenhagen and still pollute approximately the same amount (very slightly less without the weight of my body and bags). When I excitedly told people yesterday about having purchased my train ticket at a price almost comparable with flying, several people asked my why I didn’t just fly, since it was still cheaper. Their reaction was based on a belief that my impact, the purchase of one seat on a train instead of one seat on a plane, wouldn’t really make a difference in the grand scheme of climate change. So why not fly and reduce the pro capita emissions? Well, I’d be giving my money (as little as it is, grr!) to the commercial airline, helping them continue to profit off of highly polluting practices. If we all say, “screw it, the plane is flying, so am I,” we find ourselves faced with a tragedy of the commons.
From the opposite perspective – the the bright side, collective action implies that if enough of us take our environmental ethics to heart and steer clear of short flights, we could perhaps reduce the demand enough to economically stimulate the airline to cut down from two Berlin-Copenhagen flights a day to just one. Such a 50% reduction in supply might raise the price of a flight to something more fitting with the amount of pollution it produces. This would likely further cut the demand as consumers look more towards other means of transport, this time out of cost-consciousness rather than environmental-consciousness. And that, dear friends, is why I chose not to fly to Copenhagen.