Holes in porous pavement can get clogged with debris. Worcester uses porous pavement on some parking lots at parks. Porous pavement is 10% to 20% more expensive than traditional asphalt.

It’s porous pavement, which has tiny holes in it, so water runs through it instead of over it. Proponents point out that it’s a more natural and environmentally friendly way to filter ...

Blue mussels are a common sight along the coast—and in restaurants—of the U.S. East Coast. In addition to being commercially important, these bivalves play vital ecological roles by filtering water, ...