A Polish architecture firm's visionary concept for a net-zero skyscraper.

Clever urban hack created by young L.A. duo encourages people to replant their neighborhoods.

Prefab with near-zero eco-footprint is the perfect retreat for Oregon nature writer.

Global forest loss slowed over the past decade, with less logging in the Amazon and widespread tree planting in China.

Handy website helps consumers find out what farm their dairy products come from.

Images of an ecosystem in flux by wildlife photographer Paul Souders.

New technologies offer promise for expensive process of making saltwater fresh.

A proposal to ban the export of the critically endangered bluefin tuna has been rejected at a UN wildlife meeting.

Artist Daniel Arsham explores the intersection of nature and architecture.

(Without the food coloring.)