Natural pools, which may be built of stone and clay and filtered with aquatic plants, turn out to be both eco-friendly and price competitive compared to conventional swimming pools.
Cincinnati has purchased 100 percent renewable energy to operate most of its municipal buildings through at least 2021, cutting its utility rates by more than $100,000 annually.
More than 50 mayors from around the globe have signed the Chicago Climate Charter, intended to guide cities toward reaching greenhouse gas emissions reductions similar to those targeted in the Paris climate accord.
Harnessing technology and cleverness, homebuilding startups in the Ukraine, Italy and Lebanon are offering tiny, energy-neutral, quick-built houses at low cost.
The Iranian tanker Sanchi oil spill in the East China Sea has scientists worried about unknown impacts caused by the toxic nature of the ultra-light, highly flammable oil.
A beach cleanup in the Philippines resulted in the finding that Nestlé, Unilever and the Indonesian company PT Torabika Mayora were the top sources of plastic waste there.
The Seattle Mariners’ Safeco Field recycles 96 percent of all waste, garnering the team Major League Baseball’s Green Glove Award for 2017.
Joining a nationwide movement, Boston has banned single-use plastic shopping bags, requiring shoppers to bring their own totes or pay for eco-friendly bags.
Taking the Airbnb concept a step further, vacationers can now rent camp sites on private land using the online startup LandApart.com.
With more than 300 daily trains to 500-plus destinations, Amtrak offers a relaxing, scenic, affordable alternative to long hours hunched behind a steering wheel.