Evidence that global warming is affecting cyanobacterial populations comes from the substantial extension of their geographical ranges. One example is Cylindrospermopsis raciborskii, which was responsible for a mysterious outbreak of severe hepatitis-like illness in Palm Island, Australia (W. W. Carmichael, Human Ecol. Risk Assess. 7:1393, 2001). Originally a tropical and subtropical species, it has moved into higher and higher latitudes and is now widespread in the lakes of northern Germany.
Source: 2008 American Society for Microbiology
Aporte: Guillermo Figueroa