In the heart of Melbourne, Australia, lies a 87-square-meter, zero-waste home inspired by nature. It could provide a blueprint for sustainable housing of the future.

British horticulturalist Adam Alexander collects, grows and saves endangered vegetable varieties, in an effort to preserve the genetic diversity of edible crops.

This biologist-turned-surfer builds boards made out of plastic waste and uses them for expeditions that highlight global issues around plastic pollution.

Sharks are crucial to maintaining a balanced marine ecosystem, but populations are under threat. This South African scientist uses tracking technology to i