Editor’s note: Lisa Ryden is Vice President for Social Sustainability at Tetra Pak, a world-leading multinational food processing and packaging company. She has worked there for almost two decades. We ...

Biochar might sound like a fine dining special, but it's actually a promising solution to help farmers meet their fertilizer needs. The substance, a stable form of carbon similar to charcoal, is made ...

Sewage pollution in the Thames has been a problem for centuries. A new art installation at Science Gallery London explores the history, engineering, geography and science of human waste in the river.