World’s largest electric ferry completes maiden voyage

All-electric passenger and car ferry, in DenmarkElectric transportation technology is spreading beyond cars to heavy equipment, airplanes, helicopters, and now, boats. The Danish ferry boat Ellen, which made its maiden voyage earlier this month between the Danish islands of Aero and Als, claims to be the world’s largest all-electric ferry. While electric technology is still a challenge...

Could moss-covered, data-connected park benches help clear city air?

Green City Solutions City Trees use moss to filter airAs countries from India to Ethiopia plant millions of trees to combat global warming, one German company has a much smaller idea. Berlin-based Green City Solutions plans to clean the air of local emissions from gasoline and diesel engines, by planting millions of tiny mossy trees in cities. Moss works similarly to trees in filtering pollutants out...

Architect of clean-air rollbacks resigns at EPA

Bill Wehrum, EPA Office of Air and Radiation head (CREDIT: Wikimedia Commons)EPA Office of Air and Radiation Administrator Bill Wehrum, an attorney who formerly represented power companies in their effort to roll back clean-air regulations, has resigned. The biggest air-quality issues that the Office of Air and Radiation oversees are tailpipe emissions from cars, and emissions from power plants that increasingly provide...

NYC taxi mpg requirements also cut pollution, study confirms

Ford Fusion Hybrid TaxiNew York City's efforts a decade ago to clean up pollution from old taxi models has worked—mostly—a new study shows. The study, by researchers at the Columbia University Mailman School of Public Health (in New York) and Drexel University, and published in the Journal of Exposure Science & Environmental Epidemiology, shows that the...