On Earth Day 's 40th anniversary, John Kerry warns that climate change is the environment's biggest hurdle yet.

Sneaker giant ditches the shoebox for a more sustainable alternative.

A journey into community supported agriculture continues. On the menu: Poached arctic char with Italian dandelion contorni.

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

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

Condoms for a cause.

Photographer continues his decade-long documentation of our dependence on oil.

Exploring the connections between the environment and the human psyche.