This image shows the root causes of the poverty cycle.

People without Adequate Access to Food, Water and Energy from 1990 to 2030.

Ashwin Parulkar

These days, Indian policymakers are debating how to create a vast new food entitlement program. There is talk of poor households struggling to cope with high food prices and malnourishment among their children.

MORT ROSENBLUM and MAR CABRA

TALCAHUANO, Chile — Eric Pineda, a dock agent in this old port south of Santiago, peered deep into the Achernar’s hold at a measly 10 tons of jack mackerel — the catch after four days in waters once so rich they filled the 17-meter fishing boat in a few hours.

John Vidal

By 2050 there will be another 2.5 billion people on the planet. How to feed them? Science's answer: a diet of algae, insects and meat grown in a lab

Rachel Cernansky

The UN estimates that 1.4 billion people have no access to electricity, hurting their ability to earn a living or educate their children. But connecting to an electric grid may not be the only solution.

Megan Rowling

Water must be used more efficiently to meet rising food demand from a growing population amid climate-change pressures, experts say.

Washington Post

Karen DeYoung

Fresh-water shortages and more droughts and floods will increase the likelihood that water will be used as a weapon between states or to further terrorist aims in key strategic areas, including the Middle East, South Asia and North Africa, a U.S.

Some 32 social scientists and researchers from around the world, including a Senior Sustainability Scholar at Arizona State University, have concluded that fundamental reforms of global environmental governance are needed to avoid dangerous changes in the Earth system.

Shahiduzzaman Khan

Energy demands in South Asia are growing at rate of over 6.0 per cent a year - a pace that is far in excess of the region's capacity to meet.