Florida’s citrus industry got some dire news Tuesday from an organization that advises the federal government on science and technical matters. In a report, the National Academies of Sciences, Engineering, and Medicine said a single breakthrough discovery for managing citrus greening in the future is unlikely. Greening has progressed from “an acute to a chronic disease throughout the state” and has caused Florida’s industry a cumulative loss of $2.9 billion in grower revenues from 2007 to 2014. According to the report, significant barriers to finding a solution still exist.