With a computer rendering, he helped scientists understand that the earth, with its shifting tectonic plates, is “an extraordinary living being” that is “continuously changing.”

With a computer rendering, he helped scientists understand that the earth, with its shifting tectonic plates, is “an extraordinary living being” that is “continuously changing.”

In a wide-ranging interview, Xavier Becerra, President Biden’s health secretary, defended his tenure and hinted that he might run for governor of California.