Tag Archives: Environment

Lone pilot’s Arctic mission to map dark side of carbon

The sky north of Ellesmere Island had just cleared when Matevz Lenarcic, flying alone in a Pipistrel Virus airplane at around 3,600m (10,000ft), got a call on his satellite phone. His friend following the weather on a computer in Slovenia had spotted heavy clouds and snow closing in on Lenarcic’s destination, an airfield near Resolute Bay, in the Canadian Arctic.

Lenarcic, a Slovenian pilot and adventurer, had departed Longyearbyen, Norway, early that morning. When he reached the North Pole, he tipped the ultralight plane’s wings over and circled the Pole in a whimsical, if brief, round-the-world flight. Two hours later, shivering despite the immersion suit he wore, Lenarcic faced a more serious decision: race the storm to Resolute Bay or divert to Eureka, a nearby weather station with no facilities for protecting his plane after landing.

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Researchers put pristine Antarctic peninsula at risk

Men and women wanted for hazardous duty. Small wages. Bitter cold. Long months of complete darkness. Compensations include off-road driving, penguin spotting and no-hassle waste disposal.

That could be a job advertisement for station staff at Fildes Peninsula Antarctic research stations. It’s not as noble as the apocryphal advertisement for explorer Ernest Shackleton’s expedition in the early twentieth century, which promised honour and recognition, but then some of the site’s modern occupants deserve neither, according to a report released last month by Germany’s Federal Environment Agency.

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Plugging In to Plant Roots

feb13cov-300px-1359044175994Cast-off electrons in a plant’s roots can provide electricity, a Dutch team reports. Now, through a spin-off company, it hopes to grow grassy generators on rooftops and promote decentralized electrical production in wetlands in developing countries.

Plants exude a variety of waste products that microbes consume, such as glucose, acetate, butyrate, and propionate. The underground interaction leaves spare electrons in the surrounding soil and water, which researchers—led by Bert Hamelers at Wageningen University, in the Netherlands—began tapping in experiments in 2007. They were already working on using so-called microbial fuel cells (MFCs) to treat wastewater when they realized that plant roots improved the performance of the fuel cells. Continue reading Plugging In to Plant Roots