Millions of people around the world will pause, at least for a moment, to mark Earth Day. The annual event is Wednesday. It was founded by people who hoped to stir activism to clean up and preserve a planet that's now home to some 8 billion humans and trillions of other organisms. Earth Day has its roots in growing concern over pollution in the 1960s. That's when author Rachel Carson's 1962 book "Silent Spring," about the pesticide DDT and its damaging effects on the food chain, hit bestseller lists and raised awareness about nature's delicate balance. A U.S. senator from Wisconsin, Democrat Gaylord Nelson, had the idea that would become the first Earth Day in 1970.

A California watchdog is urging state lawmakers to make data centers cover their own power costs, so households do not pay more. The Little Hoover Commission warns that AI-driven growth could strain the grid and raise utility bills. The report says regulators need clearer data on where demand lands. It seeks confidential, facility-level reporting on electricity use. It also calls for a special rate class for extremely large power users. The plan includes prepaying for grid upgrades and helping cover wildfire safety costs. The report also flags backup diesel generators, carbon emissions, and water use by data centers as hampering California's climate goals.