The Essential Guide to Eco-Friendly Travel
By Meredith Rosenberg
Between gas-guzzling flights, high-pollution cruise ships and energy-consuming hotels, travel takes a huge toll on the environment. Whether for business or vacation, for many people it's not realistic to simply stop traveling. So what's the solution? There are actually numerous ways to become more eco-conscious while traveling, which can be implemented with these expert tips.
Buy Carbon Credits
We Are Neutral is a Florida-based non-profit that works with organizations to reduce their carbon footprint. Geared toward businesses, the site offers a helpful carbon footprint calculator for flights, cars and even hotels. Just enter a few basic details, and the handy tool estimates the amount of carbon your trip produces. It even suggests how much you should donate to offset that amount, and allows you to donate directly to We Are Neutral, which uses the funds to plant trees.
Fly Environmentally Friendly Airlines
Kelley Louise, the executive director of Impact Travel Alliance, says that JetBlue has started using a sustainable jet fuel blend, while the International Council on Clean Transportation has named Norwegian Air the most fuel-efficient transatlantic airline. Meanwhile, the Atmosfair Airline Index 2017 is a helpful tool for discovering the most fuel-efficient airlines, plus it offers a carbon footprint calculator and the ability to donate through its site. Also useful, the International Air Transport Association counts more than 30 airlines with carbon offset programs, like Delta, United and Emirates.
Book Non-Stop Flights
Bret Love and Mary Gabbett of Green Global Travel recommend flying non-stop: "It's the takeoffs and landings that create most of an airplane's carbon emissions."
Consider Trains Over Planes
Steve Long, co-founder of The Travel Brief, advises using trains whenever possible. "From London to Paris, trains emit almost 90 percent less carbon than a flight," he says, based on using a carbon calculator from EcoPassenger. Long adds, "Excellent railway infrastructure makes trains a viable alternative to flights, including most of Europe and East Asia, and some countries in Southeast Asia." And rail lines like Eurostar have a dedicated eco-friendly program to reduce carbon emissions, plastic and more.
Use Public Transportation
Long says that many major cities around the world offer easy downtown train access. "The historic city centers in Europe and Asia tend to be compact and pedestrian friendly (unlike North American cities), and their metro systems are extremely developed, making it very easy to get to anywhere in the cities quickly."
Stay in Eco-Friendly Hotels
Green Global Travel suggests checking if U.S. hotels hold a LEED Certification from the U.S. Green Building Council. "The program judges hotels on sustainable site development, water savings, energy efficiency, material selection, indoor environmental quality and innovation in design." For international hotels, Green Global Travel adds, "Look for seals of approval from other certification programs, such as EarthCheck (Australia), Green Globe, Rainforest Alliance (Latin America, Caribbean) and Green Tourism (UK). Some countries, including Costa Rica, have their own certification programs to rate sustainability initiatives."
If your heart is set on a hotel that doesn't hold one of those designations, consider booking it through B'n'Tree. The site will plant a tree whenever you book a stay via one of their partners, including popular hotel booking sites like TripAdvisor, Booking.com and Hotels.com.
Opt Out of Housekeeping
Steve Long of The Travel Brief notes that many Marriott brands (Westin, Sheraton) are among the hotels offering incentives to guests who decline housekeeping services. For example, Marriott will credit accounts up to 500 bonus points a day. "Skipping housekeeping services means less energy used, less water used, and less waste generated," says Long. "Even if a hotel doesn't offer incentives, you can always request to skip housekeeping."
Margot Peppers, editor of LazyTrips, cautions against dining at familiar restaurants while abroad. "Often these global chains import food from far away, which translates to more carbon emissions," she says. "Instead, seek out local businesses that use native ingredients. Even better, choose places that grow their own produce or head to a local farmers market."
Try Going Vegan
Menghan Wang, co-founder of TheTravelBrief.com, notes that a recent study found that the meat and dairy industry is predicted to contribute more greenhouse gas than the fossil fuel industry unless changes are made. Reducing meat consumption helps. Wang acknowledges that going vegan isn't an easy change, but traveling is a great time to experiment. And, she believes, "It gives you less risk of getting sick." (Food poisoning from improperly stored or prepared meat, fish and dairy is a risk you don't really need to take while traveling.)
Join an Environmentally Responsible Tour Group
Not all organized tour groups identify themselves as eco-friendly, so Green Global Travel says to consider the following when choosing: "Find out how the tour operator gives back to the local community. Do they lease the land from locals? Do they hire local guides? Do they take a leading role in preserving the area's natural resources? Community-based tourism is the most sustainable." They add, "And don't take any tour that promises hands-on encounters with wild animals, such as riding elephants or walking with lions. If you do, you're supporting an industry that illegally captures, transports and abuses millions of animals each year."
That said, small tour groups tend to be more eco-conscious than large ones, and those affiliated with an environmental group like the Rainforest Alliance are good places to start.
Reconsider Taking a Cruise
In 2017, German environmental group NABU released a study determining that the average cruise ship released the fuel emission equivalent to a million cars—a day. But lines like Hurtigruten have taken steps to reduce emissions with hybrid ships. Hurtigruten has also eliminated single-use plastic, recycles its waste and uses local food suppliers, detailed here.
Support Local Businesses
Like food, imported souvenirs geared toward tourists carry a higher carbon footprint than locally made items. Plus, says Green Global Travel, "When you buy directly from an artist, you're not only helping them feed their family, but in many cases you're helping to preserve their culture."
Seek Practical Gifts
Especially when buying souvenirs for others, it makes more sense to return home with items that can be consumed, worn or otherwise used in daily life, as opposed to items that are likely to wind up in the back of someone's closet or in the trash.
Of course, don't feel bad if you return home empty-handed. Simply sharing your vacation photos and stories can prove more meaningful than a quick gift grabbed at the airport. Plus, putting the planet first is a valid reason.
Correction: A previous version of this post incorrectly attributed a quote to Kelley Louise instead of Margot Peppers. The post has been updated.
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Researchers work with trained dolphins to learn more about their sensory abilities, seen here testing a dolphin's hearing. Jason Bruck / CC BY-ND
A Lot to Learn From Hormones<p>When sampling the blow, we are looking for hormones in mucus as these can be used to gauge psychological and physiological health. We are specifically interested in <a href="https://dx.doi.org/10.1371%2Fjournal.pone.0114062" target="_blank">hormones like cortisol</a> and <a href="https://doi.org/10.1016/j.ygcen.2018.04.003" target="_blank">progesterone</a>, which indicate stress levels and reproductive ability respectively, but can also help determine overall health.</p><p>Additionally, blow samples can detect <a href="https://dx.doi.org/10.1128%2FmSystems.00119-17" target="_blank">respiratory pathogens</a> in the lungs or nasal passages - blowholes evolved from noses after all.</p><p>This health analysis is especially important in areas with oil spills as the chemicals can cause hormonal problems that harm <a href="https://www.carmmha.org/investigating-how-oil-spills-affect-dolphins-and-whales/" target="_blank">development, metabolism and reproduction</a> in dolphins.</p><p>Hormone samples can provide scientists with valuable data, but collecting them from intelligent and unpredictable animals is challenging.</p>
Cetacean Collaborators<p>To build a drone that can stealthily collect spray from moving dolphins, we needed more data on their eyesight and hearing, and this is data that couldn't be collected in the wild nor simulated in a lab.</p><p>We worked with dolphins at facilities like Dolphin Quest in Bermuda, which provides guests opportunities to learn about dolphins while allowing <a href="https://dolphinquest.com/about-us/our-story/" target="_blank">scientists access to animals for noninvasive research</a>. Here the dolphins can swim away if they choose not to work with us, so we had to design the study like a game; the way a kindergarten teacher entertains a class. If the dolphins aren't interested, we don't get to do the science.</p><p>Over the course of hundreds of sessions, we sought to answer two questions: What can dolphins hear and what can they see around their heads?</p><p>To test dolphin hearing, we set up microphones and cameras to record dolphin behavior as we played drone noise in the air. We analyzed the responses to each noise – such as how many dolphins looked at the speaker – and used these as a proxy for their ability to hear the sounds.</p>
<span style="display:block;position:relative;padding-top:56.25%;" class="rm-shortcode" data-rm-shortcode-id="5f31daf07a652b8d64a093b993ee4e96"><iframe lazy-loadable="true" src="https://www.youtube.com/embed/UjmQeH3vXHI?rel=0" width="100%" height="auto" frameborder="0" scrolling="no" style="position:absolute;top:0;left:0;width:100%;height:100%;"></iframe></span>
Robodolphin doesn't look like a real dolphin, but it doesn't need to in order to train our drone pilots. C.J. Barton / Oklahoma State University / CC BY-ND<p>To build robodolphin, we worked with dolphins trained to "chuff" or sneeze on command to measure spray characteristics. We used high-speed photography to see the dolphins' breath as it moved through the air. Then we conducted high resolution CT scans of a dolphin head and 3D-printed a replica of a nasal passage.</p><p>Now, we have a complete robodolphin and are tweaking its sprays to be nearly identical to the real thing. This will allow us to determine how close we need to get to collect the samples, and therefore, how quiet our drone needs to be.</p>
The replica dolphin blowhole was designed from a scan of a real blowhole passage, and the spray it produces closely matches the real thing. Alvin Ngo, Mitch Ford and CJ Barton / Oklahoma State University / CC BY-ND
A Bit of Practice, Then Into the Wild<p>In the next few months, we will test flights over robodolphin with existing drones to determine the timing and strategy for collection. From there, we will fabricate a low-noise drone that can fly fast enough and with sufficient maneuverability to capture samples from wild dolphins. Like a video game, we will use the visual field data to develop approach trajectories to stay in the visual blindspots.</p><p>We plan to test our drones on a truck-mounted robodolphin moving down a runway, then using a boat to simulate realistic conditions. The next steps will involve ocean testing with dolphins trained for open ocean swimming. These tests will determine if our devices can catch and hold the hormones as the drone flies back to a researcher's boat.</p><p>Finally, we will deploy the system to collect data on wild dolphins. Our first goal is to test resident dolphins – animals that live on the coasts and deal directly with boat and oil industry noise – which will allow us to learn more about stress resulting from human impacts.</p><p>Those samples are a way off, but if all goes well we will have a specially built drone capable of flying long distances and capturing samples undetected in a few years. The samples collected will allow researchers to do better science with impact on the animals they study.</p>
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Environmental and Health Hazard<p>Experts say e-waste, which is now the world's fastest-growing domestic waste stream, poses serious environmental and health risks.</p><p>Simply throwing away electronic items without ensuring they get properly recycled leads to the loss of key materials such as iron, copper and gold, which can otherwise be recovered and used as primary raw materials to make new equipment, thereby reducing greenhouse gas emissions from extraction and refinement of raw materials.</p><p>Refrigerants found in electronic equipment such as fridge and air conditioners also contribute to global warming. A total of 98 Mt of CO2-equivalents, or about 0.3% of global energy-related emissions, were released into the atmosphere in 2019 from discarded refrigerators and ACs that were not recycled properly, the report said.</p><p>E-waste contains several toxic additives or hazardous substances, such as mercury and brominated flame retardants (BFR), and simply burning it or throwing it away could lead to serious health issues. Several studies have linked unregulated recycling of e-waste to adverse birth outcomes like stillbirth and premature birth, damages to the human brain or nervous system and in some cases hearing loss and heart troubles.</p><p>"Informal and improper e-waste recycling is a major emerging hazard silently affecting our health and that of future generations. One in four children are dying from avoidable environmental exposures," said Maria Neira, director of the Environment, Climate Change and Health Department at the World Health Organization. "One in four children could be saved, if we take action to protect their health and ensure a safe environment."</p>
Europe Leads the Way<p>While most of the e-waste was generated in Asia (24.9 Mt) in 2019, Europe led the charts on a per person basis with 16.2 kg per capita, the report said.</p><p>But the continent also recorded the <a href="https://www.dw.com/en/the-eu-declares-war-on-e-waste/a-51108790" target="_blank">highest documented formal e-waste collection and recycling</a> rate at 42.5%, still below its target of 65%. Europe was well ahead of the others on this front. Asia ranked second with 11.7%.</p><p>The authors said while more that 70% of the world's population was covered by some form of e-waste policy or laws, not much was being done toward implementation and enforcement of the regulations to encourage the take-up of a collection and recycling infrastructure due to lack of investment and political motivation.</p><p>"You have to think about new economic systems," said Kühr.</p><p>One approach could be that consumers no longer buy the products, but only the service they offer. The device would remain the property of the maker, who would then have an interest in offering his customers the best service and the necessary equipment. The maker would also be interested in designing his products in such a way that they are easier to repair and easier to recycle, Kühr said.</p>
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