Millions of pounds of lead used in hunting, fishing and shooting sports wind up in the environment each year.
The definition of "drought" has become watered down and is really just a matter of perspective.
Scientists created the longest-ever record of hurricane strikes and show El NiÃƒÂ±o acts like switch.
Metals found in lake mud in the central Peruvian Andes have revealed the first evidence for pre-Colonial metalsmithing there.
Live Science newsletter
Stay up to date on the latest science news by signing up for our Essentials newsletter.