Alex MacLean goes airborne to document the complex relationship between humans and nature.

Derek Diedricksen's salvaged material micro-shelters have mega-charm.

A photographer goes skyward to capture "industrial scars."

Computer-generated fantasy worlds "recycled" from famous artworks.

The switch to efficient lighting will have a significant impact on emissions – and climate change.

From melting ice caps to volcanic hot springs, Roni Horn's art is inspired by Iceland's shifting landscape.