Andrew Burger

Equitable, broad-based public access to sustainable, sanitary supplies of water is increasingly being seen as a security issue.

Claire Provost

The number of people living in extreme poverty could increase by up to 3 billion by 2050 unless urgent action is taken to tackle environmental challenges, a major UN report warned on Thursday.

Claire Provost

Energy poverty has left more than 1 billion people in developing countries without access to adequate healthcare, with staff forced to treat emergency patients in the dark, and health centres lacking the power they need to store vaccines or sterilise medical supplies, according to a report.

Robert Monroe

The world can significantly slow the pace of climate change with practical efforts to control so-called “short-lived climate pollutants” and by bringing successful Western technologies to the developing world, according to three UC San Diego scientists in the journal Foreign Affairs.

Justin Gillis

BREDASDORP, South Africa — A scruffy crew of scientists barreled down a dirt road, their two-car caravan kicking up dust. After searching all day for ancient beaches miles inland from the modern shoreline, they were about to give up.

Adam Vaughan

China now burns nearly as much coal as the rest of the world combined.

The country's appetite for the carbon-intensive fuel rose by 9% in 2011, to 3.8bn tonnes, meaning it now accounts for 47% of worldwide coal consumption.

Dylan Walsh

A new method for monitoring the decline in bee populations may prove a useful tool in much-needed conservation efforts. It requires only a few hundred pan traps: bright shallow bowls partly filled with soapy water or propylene glycol.

Small but simple actions by consumers and food retailers could dramatically cut the 1.3bn tonnes of food lost or wasted across the world each year, according to an unprecedented global campaign launched on Tuesday.

Damian Carrington

The world's food crisis, where 1 billion people are already going hungry and a further 2 billion people will be affected by 2050, is set to worsen as increasing heatwaves reverse the rising crop yields seen over the last 50 years, according to new research.

Dr Richard Somerville: What does a climate scientist think we should do about climate change?