Dr. Elizabeth Yuko is a bioethicist and adjunct professor of ethics at Fordham University. She has written for The New York Times, The Washington Post, The Atlantic, Rolling Stone, CNN & Playboy.

Add Yahoo as a preferred source to see more of our stories on Google. Stacks of old bricks against an outdoor plastered wall. - Fotandy/Getty Images Composting is one of the best things you can do for ...

These Australian engineers are making bricks out of rubble from disaster sites and warzones – helping to improve conditions ...