The Intergovernmental Panel on Climate Change’s fifth assessment, which has been rolling out in stages since last September, confirms a crucial divide in current climate thinking: efforts to adapt and mitigate to climate change are often considered separately from the vulnerability of people.

Half the world’s pigs – 476 million – reside in China. Increasingly prosperous consumers are eating fewer grains and demanding a more protein-rich diet, ballooning the pork industry to 15 times its 1960s-era size. In the last 30 years, Chinese demand for meat has quadrupled and China is now the largest consumer of seafood in the world.

What is the future of population and climate change research, and how can this research impact international policy? In a special issue of Population and Environment, environmental and social scientists look at these questions. “One of the most exciting developments in the climate change research community at present is the development of a new generation of climate scenarios,” write Adrian C. Hayes and Susana B. Adamo in the introduction. These can help facilitate more interdisciplinary research.

Of all the Millennium Development Goals, the maternal health and sanitation targets are among the farthest off track, said Rebecca Fishman, operations and special projects director of WASH Advocates. [Video Below]

In 2013 the United Nations Population Division revised its population projections to show that population could grow even faster than previously anticipated, especially in Africa. Planning ahead for feeding a hot, hungry, teeming planet is both a numbers game and social venture. Calories, climate change, and acres of land are some of the factors on one side of the equation. The 7 billion people in the world, projected to grow to 9.6 billion by 2050, are on the other.

The global water wars are almost upon us!

At least that’s how it seems to many. The signs are troubling: Egypt and Ethiopia have recently increased their aggressive posture and rhetoric over the construction of the Great Ethiopian Renaissance Dam in the headwaters of the Blue Nile, Egypt’s major artery since antiquity. India continues to build new dams that are seen by its rival Pakistan as a threat to its “water interests” and thus its national security. Turkey, from its dominant position upstream, has been diverting the Tigris and Euphrates rivers and increasing water stress in the already-volatile states of Iraq and Syria.