"Mayfly populations falling fast in North America: A team of researchers from the University of Oklahoma, Virginia Tech and the University of Notre Dame has found that populations of mayflies in parts of North America have fallen dramatically in recent years. In their paper published in the Proceedings...
Source: phys.org
Reinventing the Toilet for a Healthier City: New models can provide clean drinking water, create fertilizer, cut down on energy costs, and improve sanitation in the developing world.
Source: theatlantic.com