Air in the U.S. has gotten cleaner for decades, adding years to people's lives and preventing millions of asthma attacks, but nearly half of Americans still live with unhealthy air pollution, a new ...

The latest sign that plastic pollution is a gigantic global problem: rocks fused with melted plastic have been found on a remote Brazilian island, best known as a nesting site for green turtles.

Visual sign pollution is a problem that unknowingly affects most people. Visual pollution occurs through human-made visual blockades obstructing the view of the natural surroundings. Visual sign ...