A multinational plan for African intervention.
Good news: more people across the globe have improved access to safe water and sanitation. Bad news: air quality is a growing problem in lower-income countries. The Population Reference Bureau’s 2016 World Population Data Sheet, released in August, offers valuable insights into not only current and projected demographic measures, but also health, energy and environment trends around the world.
The report predicts that Africa’s population will reach 2.5 billion by 2050, accounting for 54 percent of the total world population growth. However, Asia will remain the most heavily populated region with a gain of nearly 900 million (36 percent of global population growth), and India will replace China as the nation with the most people. The number of people in the Americas is slated to rise by only 223 million, and Europe will experience a slight decline of 12 million.
Africa’s elephant population has crashed by an estimated 111,000 in the past decade primarily due to poaching, according to the IUCN’s African Elephant Status Report.
Released at the world’s largest wildlife trade conference, the authoritative report estimates that there are 415,000 elephants across the 37 range states in Africa – a huge drop since the last full update in 2006.
The surge in poaching for ivory that began approximately a decade ago – the worst that Africa has experienced since the 1970s and 1980s – has been the main driver of the decline, while habitat loss poses an increasingly serious, long-term threat to the species, according to the report.
Concentrated populations are often seen as a boon for the environment because resources can be easily shared. But so can pathogens. How can cities discourage infectious disease?
Near the corner of Broadwick and Lexington in London’s Soho neighborhood, a single spot on the ground has influenced more than 150 years of urban development. It’s the location of a water pump that in 1854 physician John Snow pinpointed as the source of contamination leading to a widespread outbreak of cholera in the neighborhood that killed more than 600 people.