A global surge in avian flu outbreaks in birds and some mammals is worrying poultry farmers, scientists, and health experts. The trend is provoking questions about the future of the disease and globa…

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 sprawling U.S. water system is central to the nation’s economy, but chronic underinvestment, increasing demand, and the consequences of climate change have revealed the system’s weaknesses.  

Each Friday, I look at what the presidential contenders are saying about foreign policy. This Week: Donald Trump gave his most detailed interview on foreign policy yet. He made some dubious claims bu…

Higher education provides students many socioeconomic benefits and increases the global competitiveness of the United States, but mounting student loan debt has sparked a debate over federal lending …

Each Friday, I look at what the presidential contenders are saying about foreign policy. This Week: Donald Trump has chosen to stand aside as the House of Representatives moves to vote on aid to Ukra…