Earth’s thin upper-crust of soil is kept in balance by a complex carbon and nutrient cycle that is increasingly threatened by human exploitation and climate change, according to a review in Science. The chemicals trapped in topsoil and subsoil are crucial to plant growth, but are being depleted at rates much higher than they are being replenished, writes Ronald Amundson et al. For instance in the central United States, estimated soil erosion rates exceed production rates by 10 times.

Pope Francis sparked worldwide discussion and jubilation among many green advocates after releasing Laudato Si, the first Papal encyclical to focus directly on the environment. The pontiff touched on everything from pollution and sustainable development, to anthropogenic climate change and water security in his 180-page missive.

Researchers have been warning about future water scarcity for decades, but new data reveals a majority of the world’s largest aquifers are already running out of water.

On a warm January afternoon, Tesema Merga, a village elder in Endibir, Ethiopia, surveyed the latest improvements to the long dirt road just outside his house. Eventually this road will be paved, which will bring significant changes to the community.

Frequent readers of New Security Beat are no strangers to the PHE approach to development – projects, often community-based, that integrate population, health, and environmental programming in a single intervention. Practitioners suggest that such integrated programming is more effective and efficient than running simultaneous siloed projects, each focusing on a narrower objective. But does the evidence support this conclusion? How effective is the PHE approach?

Trafficking of illegal wildlife goods is quickly becoming one of the most lucrative illicit businesses in the world. With growing demand in Asia, an industry that was once fed by isolated, small-scale poaching incidents is now run by well-organized, transnational criminal networks, similar to narcotics and guns. The Obama administration labeled wildlife trafficking as a national priority in 2013 and released a National Strategy for Combatting Wildlife Trafficking in 2014. A detailed implementation plan for the strategy followed this year, identifying key steps and implementing agencies to help end trafficking in the United States and abroad.

One of the primary ways climate change is expected to affect international relations is through water. There are more than 270 bodies of water that cross over international boundaries, and various methodologies have identified several dozen that are particularly at risk for tension or conflict. So how is climate change affecting transboundary water politics? Are governments and institutions taking the threat seriously? A few years back, a group of researchers decided to focus on this question.

Conventional wisdom has been that wealthier countries have better environmental protections than poorer countries. However, a new annual report launched this year, the Environmental Democracy Index, reveals that a strong economy does not necessarily ensure strong environmental rights.