A green accounting method called “mass balance” certifies that something was manufactured with recycled plastic — just not necessarily much of the bottle making the claim. By Julie Creswell and Hiroko ...
Residents in the Philippines are tackling electricity shortages with a clever lighting solution by filling water bottles with bleach and wrapping them in sheet metal. The method harnesses sunlight and ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results