A report from the U.S. Chamber of Commerce warned that a recent labor shortage plaguing businesses nationwide is worsening, describing the situation as a “national economic crisis.” The Chamber’s report released Tuesday found that the United States had a record 8.1 million vacant job openings in March—the last month where data was available—noting it was an increase of 600,000 from February. But, the Chamber stressed that there “are approximately half as many available workers for every open job,” or 1.4 available workers per job opening, across the country “and the ratio continues to fall.” Compared with the previous 20 years, there were 2.8 available workers per job opening, according to the organization. “In several states and several industries, including hard-hit sectors like education and health services as well as professional and business services, there are currently fewer available workers than the total number of jobs open,” the report found, adding that …