With water quickly becoming a scarce resource, market innovations are changing the way we use it.

Working together can help balance the sometimes seemingly conflicting goals of economic growth, social development and environmental protection.

And what Lyft’s acquisition of Motivate means for the urban dockless bikes movement.

Meloy Fund, Catch Together and Rare are advancing the possibilities.

Climate-vulnerable countries are having to pay more to borrow cash on financial markets, new U.N. research finds.

The critical systems at its facility in Richmond, California, can operate for up to three hours when the broader grid goes down.

A Sidewalk Talk Q&A with researcher Candace Brakewood on all the ways it improves our lives  —  and its role in a potential car-free urban future.

Imports of foreign oil are at their lowest levels since 1967. But there’s a dirty secret underneath those numbers.

There’s a difference between systemic change and bandwagon participation.