Contenders for the 2011 Prix Pictet, the world's leading prize for environmental photography, to exhibit in Paris next month.

As green as it gets: "Living Lab" for clean tech companies unveiled in Holland.

NYC looks to the renewable energy potential of sewage treatment.

Canadian project converts waste to clean energy.

Future ecotopia or vision of tragedy? Installation brings climate change into focus.

Strictly irie winter eats.

Stephen Mallon chronicles the repurposing of NYC subway cars.