Karachi, the world’s second largest city by population, is emerging from the grips of a deadly heatwave. A persistent low pressure system camped over the Arabian Sea stifled ocean breezes and brought temperatures in excess of 113°F (45°C) to the city of 23 million people in June. The searing heat disrupted electricity and water service, making life nearly unbearable. All told, officials estimate the heatwave killed at least 1,200 Pakistanis, more than twice as many as have died in terrorist attacks this year.

Iran is poised to reap a vast “demographic dividend” if the appropriate national and international policies are adopted, including a nuclear deal with the P5+1 (five permanent members of the UN Security Council, plus Germany).

Wildlife trafficking has exploded in recent years and now contributes significant funds to major criminal organizations and even terrorism. That puts it squarely in the realm of national security, according to a research project by the University of Texas, Austin. Cameron Lagrone and Josh Busby explain the connection in last month’s most popular post.

As the U.S. has undergone a rapid and massive shift to natural gas from coal, one benefit has gone almost entirely overlooked: the amount of water needed to cool the nation’s power plants has dropped substantially.

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.

Before world oil prices collapsed late last year, shop owners closest to the banks of the Rio Grande River in Piedras Negras joked that they could hear the groans of Texas drilling rigs advancing toward their fast-growing northern Mexico city.

Two months ago we sat down with some of our community health workers to brainstorm ideas for International Women’s Day. What would engage women, what could bring about positive change in their community? Something different to the normal celebrations, perhaps a petition for a midwife? This seemed like a great idea on paper, but would it create false hope in a village where the public health center has been closed for years?

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.