A global search for alternative sources to Russian energy in light of the war in Ukraine has refocused attention on smaller, easier-to-build nuclear power stations, which proponents say could provide a cheaper, more efficient alternative to older model mega-plants. U.K.-based Rolls-Royce SMR says its small modular reactors, or SMRs, are much cheaper and quicker to get running than standard plants, delivering the kind of energy security that many nations are seeking. France already relies on nuclear power for a majority of its electricity, and Germany kept the option of reactivating …

New York Gov. Kathy Hochul said Friday the state was stepping up its polio-fighting efforts as the virus that causes the life-threatening disease was detected in the wastewater of yet another county in the New York City area. Health officials began checking for signs of the virus in sewage water after the first case of polio in the United States in nearly a decade was identified in July in Rockland County, which is north of the city. The latest detection involved a wastewater sample collected last month in Nassau County …