Copenhill: transforming waste into energy and recreation.

Space pollution: it's time to preserve our space!

The Wohnprojekt in Vienna: participatory and ecological housing.

The symbiotic economy: another possible growth.

In South Korea, a food truck offers sweets in exchange for waste!

The Wai House, a new completely autonomous tiny house!

A "living" coffin made from mushrooms.

In Sweden, a company hires crows to pick up cigarette butts.

Artificial meat from tobacco plants.

A down jacket stuffed with cigarette butts.