On page 230, Li and Chakraborty3report that the rate at which tropical cyclones from the North Atlantic decay after landfall has changed since the 1960s — their intensity has been decreasing more slowly over time.

No, that wouldn’t make Irma a “category 6” hurricane, because there is no such thing.)

The Association of Zoos and Aquariums, which represents more than 230 animal care facilities in the U.S. and abroad, requires all of its members to practice an annual disaster preparedness drill to keep their accreditation.