The murder of five land rights campaigners during the last two months – one in Colombia, three in Brazil, and one in Cambodia – have not captured many headlines, but they are a reminder of the central role land tenure plays not just in rural economic development but also in sparking broadly distributed economic gains throughout a society.

In March 2012, I participated in a study tour to the island of Bohol, near the unique Danajon double barrier reef ecosystem – the only one of its kind in the Philippines and one of only three in the Indian and Pacific Oceans. Nowhere is the connection between population dynamics and biodiversity more evident than in the Philippines, one of the most densely-populated countries on the planet, with more than 300 people per square kilometer. Nearly every major species of fish in the region shows signs of overfishing, according to the World Bank.

“In a future world affected by climate change, population growth is one lever that can be addressed to ameliorate the impacts of climate change, particularly in the area of food security,” write Scott Moreland and Ellen Smith in “Modeling Climate Change, Food Security, and Population,” a recent study for MEASURE Evaluation and USAID. Moreland and Smith combine demographic changes, food needs, and economic capacity into a single aggregate model to assess how family planning and climate change might affect food security from now until 2050. Using Ethiopia as an example, the model finds that if access to family planning services were increased to meet existing needs, the subsequent decrease in demand for food would reduce child malnutrition and effectively counteract a projected 25 percent shortfall in caloric availability from climate change’s impact on agriculture. Programs designed to increase access to family planning should therefore be incorporated into national adaptation and food security strategies, they conclude. “Family planning, especially in countries with high unmet need, provides a potential solution not only for women’s reproductive health, but also for adapting to the effects of climate change.”

“Water security is about much more than access to H2O,” said Jane Harman, director, president, and CEO of the Wilson Center at the May 9 meeting, “Global Water Security: The Intelligence Community Assessment.” The event – part of the Wilson Center’s National Conversation Series – brought together a number of experts to discuss a recently released intelligence community assessment of global water security. [Video Below]

The original version of this article, by John May, appeared on the Center for Global Development’s Global Health Policy blog.

Population issues have been conspicuously absent from the discussions on the environmental sustainability of our globalized economy in the run-up to the Rio+20 Conference on Sustainable Development, which will take place in Brazil, June 20-22, under the auspices of the United Nations.

In the coming years, Nigeria’s cohort of unemployed youth has equal potential to “be converted into either a religious or a regional clash, as certain youths get opportunities and other youths do not,” said Pauline Baker, President Emeritus of the Fund for Peace, during the day-long “Nigeria Behind the Headlines” event at the Wilson Center on the April 25 (read part one here). [Video Below]

The original version of this article, by Roger-Mark De Souza, appeared on the Climate and Development Knowledge Network (CDKN).

In late May, I presented research on population and climate dynamics in hotspots at the Planet Under Pressure conference in London, in a session organized by the Climate and Development Knowledge Network. As we prepare for the Rio+20 Earth Summit in June, I reflect on the roles of population dynamics and climate-compatible development for ensuring a future where we can increase the resilience of the most vulnerable to the impacts of climate change.

Last month, an avalanche on the Siachen glacier in Kashmir killed 124 Pakistani soldiers and 11 civilians. The tragedy has intensified debate about the logic of stationing Pakistani and Indian troops on such inhospitable terrain. And it has also brought attention to Pakistan’s environmental insecurity.

Siachen is rife with glacial melt; one study concludes the icy peak has retreated nearly two kilometers in less than 20 years. It has also been described as “the world’s highest waste dump.” Much of this waste-generated from soldiers’ food, fuel, and equipment-eventually finds its way to the Indus River Basin, Pakistan’s chief water source.

Siachen, in fact, serves as a microcosm of Pakistan’s environmental troubles. The nation experiences record-breaking temperatures, torrential rains (nearly 60 percent of Pakistan’s annual rainfall comes from monsoons), drought, and glacial melt (Pakistan’s United Nations representative, Hussain Haroon, contends that glacial recession on Pakistani mountains has increased by 23 percent over the past decade). Experts estimate that about a quarter of Pakistan’s land area and half of its population are vulnerable to climate change-related disasters, and several weeks ago Sindh’s environment minister said that millions of people across the province face “acute environmental threats.”

Continue reading on the AfPak Channel.