In March, the world passed a major energy milestone, adding its third terawatt of solar power. Increasingly, poorer countries are leading the shift to solar, analysts say.

For half a century, a house on the coast in southern Lebanon has kept vigil over Al-Mansouri beach and the blue Mediterranean waters beyond. Mona Khalil’s grandfather built the house in the 1970s, aro...

Penn’s 2028 rebuild is our chance to fix its broken, unsafe paths. Take the county survey to advocate for a one-way cycle track.

This statement summarizes current scientific evidence regarding Andes virus (ANDV) transmission dynamics, including documented person-to-person transmission, outbreak epidemiology, infection control c...

But the US’s withdrawal from the WHO – and cuts to the country’s health system – stymie officials’ response