A 40-foot-long Winnebago called the Digibus rolled through central California towns to train kids and adults in computer and job-searching skills.
Milkweed pods, which are five times lighter than synthetic insulation, are being tested by the Canadian Coast Guard as filler in prototype parkas, gloves and mittens.
European supermarkets are cutting costs and saving energy by using high-tech lasers to mark prices on avocados, sweet potatoes and coconuts, with more to come.
The financially strapped National Park Service increasingly relies on volunteers to staff visitor centers and campsites, and a third of the workers are over age 54.
Grocery stores are increasingly offering ugly-but-edible produce to customers at reduced prices instead of dumping them into a landfill.
Under legal and activist pressure, SeaWorld is ending its theatrical killer whale shows and breeding program.
Levels of toxic mercury in Atlantic Bluefin tuna declined 19 percent between 2004 and 2012, a drop that scientists attribute to a shift from coal to natural gas and renewable energy.
Harvard researchers have invented tiny robotic bees that may be able to eventually pollinate the crops that are under threat because of vanishing bee colonies.
Australian scientists are seeking citizens around the world to bury tea bags in wetlands to measure the rate as which the bags capture and store carbon.
New Zealand and India have granted the legal status of personhood to vital rivers, forwarding an international movement that seeks to protect precious natural resources from corporate domination.