See how six countries are faring amid efforts to protect 30 percent of the planet’s land and waters by 2030, and what will be saved if they succeed. 

The world is inching closer to eradicating polio, but armed conflicts and opposition to vaccines stand in the way of finally eliminating the disease.

The Democratic field could touch on a number of foreign policy issues, from climate change to Iran, during its first prime-time sparring session.

Years ago, Wanda Jablonski, the famous energy journalist and newsletter publisher, gave me an important piece of professional advice. Be careful how many conflicts you take on at one time.  Wanda’…

This post is co-written by Daniel Scheitrum, an assistant professor at the University of Arizona’s Department of Agricultural and Resource Economics. In the U.S. Environmental Protection Agency do…