Sustainability

Human waste might someday turn human urine or waste into useful electricity for radios or space robots

A new "Green City, Clean Waters" plan aims to address water and climate issues, but it is not inspiring much brotherly love among some

Alternatives for aviation industry and the military pose issues related to land use, clearing peatland, fertilizer use, costs and more emissions

Making biofuels from waste makes dollars--and sense

A study looks into giving farmers permission to harvest cellulosic feedstocks on land set aside for wetlands and wildlife conservation

A landfill in Hangzhou may become a model for dealing with China's growing garbage problem

The IPCC foresees swiftly expanding alternative energy, defines cookstoves as "renewable" and omits nuclear

Although increased demand for paper sacks in the wake of plastic bag bans could lead to more deforestation, most paper grocery bags in use today are made from recycled content, not virgin wood

Two pilot projects are testing the potential of "salt power," a renewable energy that relies on the differing salinities at river mouths to make watts

The U.S. Navy will begin testing biofuels from camelina and algae

Chemical runoff from residential and farm products affects rivers, streams and even the ocean

Cellulose-loving fungi can cut biofuel costs by enabling existing corn ethanol plants to process cheaper, woody feedstocks such as corn stover