No broad-based international agreement on sharing rivers currently exists, even though much of the world depends on water from rivers that flow through more than one nation. But that may be about to change, as two separate global river treaties are close to being approved.

Hunter Lovins, the keynote speaker at the Association for the Advancement of Sustainability in Higher Education's conference, should have been a huge hit. Not.

Global fish stocks are exploited or depleted to such an extent that without urgent measures we may be the last generation to catch food from the oceans.

The amount of "green" advertising rises and falls in conjunction with key indicators of economic growth.

American agriculture is steeped in a chemical-intensive system that wastes money and pollutes the environment. But by making use of new technology and innovative approaches, farmers can boost production and profits — while at the same time improving soil quality, enhancing biodiversity, and protecting habitat.

Weeds, manure, slugs, cows and a vegetable oil-powered tractor are all part of a unique study being conducted in Penn State's College of Agricultural Sciences.

The Rio+20 Summit produced a largely meaningless document that failed to address the daunting environmental challenges the world faces.

John Pearson’s Oldsmobile gets maybe 21 miles to the gallon. His school car – a custom-built, carbon-fiber test vehicle – is a bit more efficient: It could, in the right conditions, exceed 2,000 mpg.

In the past few months, certain media articles have left me wondering what impact the mixed economic fortunes of various leading nations will have on sustainability leadership emanating from them.

The ashram is a clean and tranquil place where natural resources are utilised in a sustainable manner and both administrators and beneficiaries try to incorporate the concept of sustainability into their lifestyles.