Literally putting a price on carbon pollution and other greenhouse gasses is the best approach for nurturing the rapid growth of renewable energy and reducing emissions.
The fight against epidemics like Ebola is waged by health care workers on the ground and by researchers in the lab. But it is also fought by public officials and politicians, from community elders to national leaders to the heads of international organizations.
A border fence intended to halt migrants from traveling to Hungary through Serbia will be finished by the end of August. The border, located in Southern Hungary, has become a popular crossing point for thousands of migrants from the Middle East, Asia and Africa hoping to flee from the poverty and war in their home countries.
Tracking mobile phone data is often associated with privacy issues, but these vast datasets could be the key to understanding how infectious diseases are spread seasonally, according to a study published in the Proceedings of the National Academy of Sciences.