A water treatment plant in Georgia earlier this year. Officials have long warned that the nation’s roughly 150,000 water treatment systems are relatively easy targets for hackers.

Jérôme Dupras, the bass player in Les Cowboys Fringants, one of Quebec’s most famous rock bands, was recently appointed as chief scientist of Quebec.

Bryan Hubbell, former head of the air, climate and energy program at the Environmental Protection Agency’s research office. “I knew I wasn’t going to be able to keep doing the work.”

Bayer, the German conglomerate that acquired the maker of Roundup in 2018, argued that federal rules requiring herbicide safety labeling should bar people from filing state-level claims that accuse companies of failing to warn consumers of dangers.

Twenty of the 472 stations in New York City’s sprawling subway network had to be temporarily closed on Monday night.

A pangolin looking for food on a private property in Johannesburg, South Africa, in 2019.

Solar panels at the Sao Mai power plant in An Giang Province, Vietnam, last year. The country has been awarded $15.5 billion in grants and loans in exchange for a commitment to renewable energy.

Among the hundreds of migrants camped along the Rio Grande in Matamoros, Mexico, were members of the Indigenous Miskito group in Honduras.

The senior executives of OpenAI in March. From left, Mira Murati, now the company’s interim chief executive; Sam Altman, the ousted chief executive; Greg Brockman, OpenAI’s president who quit on Friday night; and Ilya Sutskever, a member of the company’s board.

ConocoPhillips pipelines on the North Slope of Alaska, near the planned site of the Willow Project.