Toxic cyanobacteria blooms, or blue-green algae blooms are often poorly monitored and have become an under-appreciated health risk, not only in the U.S. but worldwide. There are several factors contributing to the concerns.
A new strain of cyanobacteria has been discovered in the partially scorched waters of Lake Alchichica in Mexico. The bacteria are believed to be unique since they produce a unique endoskeleton comprising of calcified lumpy granules.
It has long been assumed that oxygen-producing cyanobacteria were responsible for the appearance of oxygen in the earth's atmosphere. If that theory is correct, then how is it possible that they appeared at least 200 million years before the oxygen?