If you have a clogged sewer line every year or two, don't just keep getting it cleaned. Most sewer service companies will ...

Saltwater is plentiful, but no good for drinking. Desalinization is the obvious solution, but a big problem isn’t taking the salt out, it’s where all that leftover salt goes. Excess salt ...

That is a lot of unused cars clogging a lot of busy streets. Simple physics explains why such a glut of ride-sharing vehicles is causing, not curing, congestion, said Jarrett Walker, a public ...