15 houseplants for improving indoor air quality
January 29, 2016, 1:07 p.m. by Julie Knapp
In the late '80s, NASA and the Associated Landscape Contractors of America studied houseplants as a way to purify the air in space facilities. They found several plants that filter out common volatile organic compounds (VOCs).
8 of the greatest eco-friendly beaches in the world
June 18, 2010, 11:45 a.m. by Julie Knapp
We scoured the planet to find the most spectacular shorelines — and no surprise, most of our top choices are found on protected land or are nearly impossible to reach.