Want climate news in your inbox? Sign up here for Climate Fwd:, our email newsletter.

Moody’s Corporation has purchase d a controlling stake in a firm that measures the physical risks of climate change, the latest indication that global warming can threaten the creditworthiness of governments and companies around the world.

The rating agency bought a majority share in Four Twenty Seven, a California-based company that measures a range of hazards, including extreme rainfall, hurricanes, heat stress and sea level rise, and tracks their impact on 2,000 companies and 196 countries. In the United States, the data cover s 761 cities and more than 3,000 counties.

“We are taking these risks very seriously,” said Myriam Durand, global head of assessments at Moody’s Investors Service, who said the purchase would allow its credit analysts to be more precise in their review of climate related risks. “You can’t mitigate what you don’t understand.”

The purchase is the latest in a series of moves by rating agencies to better account for the effects of climate change on the ability of governments to pay back the money they borrow by issuing bonds. Global warming can threaten that ability in a variety of ways.