ScienceDaily: Top Environment News: One step to solar-cell efficiency: Chemical process may improve manufacturing

Jay Owen Greentech, Earth Systems Science

One step to solar-cell efficiency: Chemical process may improve manufacturing

Posted: 19 Jun 2014 09:55 AM PDT

Scientists have created a one-step process for producing highly efficient materials that let the maximum amount of sunlight reach a solar cell. Scientists found a simple way to etch nanoscale spikes into silicon that allows more than 99 percent of sunlight to reach the cells’ active elements, where it can be turned into electricity.

Humans have been changing Chinese environment for 3,000 years: Ancient levee system set stage for massive, dynasty-toppling floods

Posted: 19 Jun 2014 09:50 AM PDT

A widespread pattern of human-caused environmental degradation and related flood-mitigation efforts began changing the natural flow of China’s Yellow River nearly 3,000 years ago, setting the stage for massive floods that toppled the Western Han Dynasty, suggests new research from Washington University in St. Louis.

Two low-cost, car battery-sized space telescopes launched

Posted: 19 Jun 2014 06:19 AM PDT

Two nanosatellites were launched from Russia by a Canadian research and technology team. Costing a fraction of conventional space telescopes and similar in size and weight to a car battery, the satellites are two of six that will work together to shed light on the structures and life stories of some of the brightest stars in the sky, uncovering unique clues as to the origins of our own Sun and Earth.

Re-routing flights could reduce climate impact, research suggests

Posted: 18 Jun 2014 07:06 PM PDT

Aircraft can become more environmentally friendly by choosing flight paths that reduce the formation of their distinctive condensation trails, new research suggests.

Winds of change for the shipping sector

Posted: 18 Jun 2014 07:06 PM PDT

Wind propulsion such as kites and Flettner rotors could offer a viable route to help cut carbon dioxide emissions in the shipping sector, according to researchers.