Creation care is John Houghton’s mission. In what you might call a retirement career, Houghton, an atmospheric physicist, writes books, lectures extensively to Christians and others on the science and threats of global warming, and is a founder and president of the John Ray Initiative, a nonprofit organization that aims to educate Christians about the environment.

Not long after Houghton earned his PhD at Oxford University for measurements on radiation in the atmosphere, the Soviet Union launched the first Sputnik satellite in 1957. That and subsequent satellites opened the door to “not just observing a little bit of the atmosphere, but observing the whole atmosphere from above. It was really exciting to anyone involved in atmospheric science,” says Houghton.

After a long career as an Oxford professor that included building instruments for NASA spacecraft to measure the temperature and composition of the stratosphere and mesosphere and later overseeing the merger...

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