While the modern world is built with cement, its creation is one of the biggest emitters of greenhouse gasses. As a result, finding ways to improve its durability and safety is paramount. In a new ...

Beware of dabs: The people in Miami making butane hash oil, the marijuana extract made by stripping THC from the buds using butane (“A Dab Will Do,” Francisco Alvarado, October 24) are stupid. The ...