The common blue green algae found on local waterways has bloomed into an unprecedented event in the Taihu basin. This week on the Down East Journal, we speak with North Carolina scientist Dr. Hans Paerl about his research trip to China and what we can do to prevent “cyanobacteria” from proliferating in eastern North Carolina. The Down East Journal airs Friday at noon on all of the PRE stations. And Saturday at noon on News and Ideas.