SCIENCE


Title: Step Lightly, Please (Carbon Neutral Travel)
Author: Michael Tennesen
Source:  AUDUBON, July-August 2007 p89-92
Data Base: C

STEP LIGHTLY, PLEASE

(A growing number of websites can help you calculate and expunge the carbon footprint created by your wanderlust. But is it better for the environment if you just stay home? Sometimes.)

By Michael Tennesen The view from my campsite atop a 13,000-foot ridge in the Andes Mountains, just inside Peru's Manu National Park, is at once breathtaking and troublesome. Out over the Amazon Basin, giant cotton tufts filled with vapor are rising up, amassing for their assault on the cloudforests below. For the next couple weeks I will be rambling beneath the forests' dense canopy draped with mosses and orchids, and witnessing a sampling of the 1,666 species of birds found here in the Andes at various times of the year. At the borders of this national park, the trademark signs of progress-trees logged for farmlands or replaced with groves of cultivated eucalyptus and pine-are inching closer. Above the tree line, the lands have been cleared for grazing. If these iconic forests are to survive, they may need to reclaim some of those lands. And that, too, is ominous. "The speed at which the climate is warming may require many of the tree species to migrate up the mountain faster than they are able," says Miles Silman, a biologist at Wake Forest University, who studies Peru's cloud forests. Visiting natural places like this is one of the reasons I became a journalist. Yet I can't help but ask myself: Isn't my wanderlust-and therefore that of my readers-part of the climate change problem about which I'm increasingly reporting? Ecotourism, while educational and enriching, also contributes to the increasing emissions that are causing climate change. "One of the worst environmental acts a person can do is buying an airplane ticket," says Christina Cavalier, director of training and education for The International Ecotourism Society, a Washington DC-based non-profit. (The average coast-to-coast flight expends 1.23 tons of carbon dioxide per person.) Even without the flying, travel can be a significant source of greenhouse gas emissions. Lots of things we do-driving, staying in hotels, eating out, even buying souvenirs-have carbon tolls. Now a growing number of organizations are on hand to help travelers calculate their so-called carbon footprint and purchase offsets that go toward planting trees or supporting renewable energy sources that can in effect make travel "carbon-neutral," (one of the newest terms in the New Oxford American Dictionary). It's essentially the same as carbon trading-a concept most often associated with the Kyoto Treaty-and it's available to individual consumers, at the click of a mouse. Calculator websites abound, with prices and carbon estimates varying widely. I first log on to the website for Native Energy (www.nativeenergy.com), the company that Al Gore selected to zero out the carbon emissions created from making An Inconvenient Truth. Native Energy has an option on its home page that lets you calculate carbon emissions from flying, driving, taking busses, and staying in hotels. The mileage printed on my plane ticket shows I covered 10,505 miles from Los Angeles, California, to Lima, Peru. Add to that the estimated 125-mile train ride to Macho Picchu, the 150-mile bus ride to Manu National Park, plus seven nights in a hotel, (five additional nights of camping are carbon free) and my carbon debt adds up to a total of 4.41 tons. Rounding up, I can pay $12 per ton for five tons, or $60, to offset my entire trip, while helping to fund the construction of alternate sources of energy, including windmills and methane generators. When I try to replicate these steps on Travelocity, which now offers a Go Zero program, allowing customers to "zero out" carbon emissions generated by their flight, hotel, or driving, I am only given the option to make my trip carbon-neutral if I buy another ticket-making it impossible to comparison shop. The Conservation Fund's website (www.conservationfund.org) is more user-friendly. Though it asks me to input estimates about my annual travel, there's nothing stopping me from entering the mileage for just one trip. When I type in my air miles for Peru, it spits out a toll of 2.31 tons of carbon dioxide (slightly less than half the Native Energy estimate). For only $14.24 I can plant two trees, which over the next 70 years will take about 2.31 tons of carbon from the air and lock (or as scientists say "sequester") it into the tree. The Conservation Fund gives no estimate for cabs, trains, and hotels, but if I round out my total to 3 tons I will still only pay $17. The donation goes to plant native trees in once-forested areas (most of them protected lands in the Mississippi Valley). As I continue shopping, I find other websites that make it possible to expunge my carbon debt on the cheap: carbonfund.org charges $15.62 for its estimate of 2.84 tons for my Peru flight; co2.org calculates 2.37 tons at 17 pounds sterling ($32.84 US). Why such a big difference in price between Native Energy and these other websites? Wolfgang Strasdas, a professor at Eberswalde University, Germany, currently at the Center on Ecotourism and Sustainable Development at Stanford University, California, says one of the reasons Native Energy estimates are higher is because the company figures in a 2.7-fold increase for long-range flights, which typically travel above 30,000 feet. "At that elevation planes leave vapor trails that last for many years and increase the green house effect," says Strasdas. For this reason, he personally prefers to use Atmosfair (www.atmosfair.de), a German company that also includes the long-range factor into their emissions calculator, and tends to produce tallies much higher than Native Energy. (My flight alone from California to Peru was $125). Jeremy Meredith is a real estate developer in Northern Virginia who travels a lot, having ventured to Viet Nam, Cambodia, Belize, Bolivia, and twice to Costa Rica in the last year and a half. After collecting the mileage totals from his various frequent flyer accounts, he chose the Conservation Fund's website to offset all of it for about $75. "I liked the fact that they planted trees to compensate for carbon emissions," he says. "Plus the Conservation Fund was highly rated in the articles I read." Some environmentalists point to a problem with carbon-offset programs that involve tree planting. "Don't get me wrong, trees are awesome," says Billy Connelly, Native Energy's Marketing Director. "But we keep introducing carbon taken from the terrestrial ecosystem-coal and oil-burning it up and putting it into the atmosphere. Planting trees doesn't address that." His company invests in new or start-up operations in renewable energy-an expensive process. (One new windmill can cost upwards of $1 million.) Knowing that your money actually bought a tree or promoted wind power is another issue. The Chicago Climate Exchange (CCX) is North America's only greenhouse gas emission registry, reduction, and trading system for all six greenhouse gases: carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), hydrofluorocarbons (HFCs), perflurocarbons (PFCs), and sulphur hexafluoride (SF6). As a third-party certifier, CCX audits its members to ensure their carbon-trading claims are legit. Increasingly, tour operators are doing the work for travelers by buying carbon offsets to compensate for the amount of carbon dioxide their trips produce. REI Adventures announced a carbon-neutral travel program last year (rei.com) Ski resorts from Vail, Colorado to Stratto, Vermont-with perhaps the most to lose in a warmer world-are buying renewable energy credits through Bonneville Environmental Foundation (www.greentagusa.org). L. Hunter Lovins is the president and founder of the small non-profit Natural Capitalism Inc., in Eldorado Springs, Colorado, and a business professor at Presidio School of Management in San Francisco, California, which offers the first accredited MBA program in sustainability. When she jets between Colorado and San Francisco once a month to teach a class at the Presidio School in sustainable practices, Lovins always offsets her carbon emissions. Sometimes when she is attending conferences she is "triple carbon-neutral" because carbon-offsets are purchased by her company, the school, and the conference sponsors. "And yet I still feel guilty," she says. "Because I'm still putting carbon into the air." Which brings us to the obvious question-is it better just to stay home? "Of course," says Lovins. "But that's not realistic. We want to drink from streams as yet unseen. I want to see the footprint of a snow leopard in Afghanistan. We need to be as conscientious as we can." Lovins points to small experiments in air travel with ethanol and hydrogen. She particularly likes Virgin Airlines' promise to invest $3 billion in alternative energy, including carbon-neutral fuel. "Offsets are better than nothing," she says. "But we need to come up with alternatives to carbon-based fuels." In the meantime, it's important that travelers don't skip over making everyday transportation changes that conserve energy. "Carbon offsets need to be part of a holistic approach," says Martha Honey, executive director of The International Ecotourism Society, "in which we not only try to offset our emissions, but we decrease those emissions in as many areas as we can." Choices like walking or using mass transit instead of driving every day can add up to huge carbon savings. If you don't have access to public transportation, pressure your elected officials and let them know why. "In the United States we often complain that are options for travel are very limited," says Lovins. "But we don't have options because we don't demand them. Why doesn't the United States have a good trains system? Why aren't cities more pedestrian-friendly? These are not impossible dreams; we just need to start demanding them." Supporting local economies is another way to cut carbon emissions, and also make trips more memorable. When Lovins travels she likes to stay in bed and breakfasts because they not only employ local people and support local goods, they also save a portion of the heritage in the buildings they preserve. Environmental tourism groups agree: ensuring that the community profits from your presence and that they understand your commitment to its environment is key. Hire guides from the area. Eat regional in-season foods at local restaurants. And don't expect to eat foods from home. Anything that has to be flown in has a substantial price in terms of the CO2 released to bring it to you. Despite its problems, travel can actually be a boon for conservation, adds Honey. "It's crucial to host communities and an important economic activity in developing countries. Plus travel is a learning tool, as well. It gives the traveler an awareness of the world and the environment, that you won't get from staying home watching television. --End--