Electrification is seen as having an important role to play in the fossil-free aviation of tomorrow. But electric aviation is battling a dilemma: the more energy-efficient an electric aircraft is, the noisier it gets. Now, researchers at Chalmers University of Technology, Sweden, have developed a propeller design optimization method that paves the way for quiet, efficient electric aviation.
Our favorite Kickstarter, Indiegogo, GoFundMe,and Startengine campaigns favored the environment. We’ve selected a smart and sustainable timepiece, an effort to save lake Nacimiento, the preservation of a grand butterfly garden along with solar-powered renewable energy storage units.
More than 1.35 million comments have been submitted to the Bureau of Ocean Energy Management (BOEM) in opposition to U.S. Department of Interior Secretary Ryan Zinke’s proposal to expand offshore drilling.