Civil aviation plays a crucial role in the U.S. transportation network and economy. Ongoing turbulence from the COVID-19 pandemic, underinvestment in infrastructure, and climate change are clouding i…

The costs of hosting the Olympics have skyrocketed, while the economic benefits are far from clear. This has led to fewer states interested in playing host and a search for options to lighten the bur…

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