Author: Trevor Hughes, USA TODAY

For the first time in 600 years, the Vatican must plan a funeral for a retired pope, which “has no precedent in Italy,” one expert says.

Police released little information on how Bryan Kohberger ultimately became a key suspect in the killings of four University of Idaho students.

Guards in church, security training for rabbis: In USA, thousands of churches, synagogues, temples and mosques have beefed up security.

Activists can’t make the radical, systemic changes needed to fight climate change. But experts say they have the power to draw attention to the cause.

History provides few successful examples of lava diversions. In Hawaii, authorities tend to defer to the volcano goddess Pele.

Many Native villages in the U.S. are at risk from climate change, particularly those on the shores of lakes, rivers and oceans.