Figure 1.

Examples of globally distributed harmful cyanobacterial blooms (CyanoHABs).

A. Lake Taihu (NASA MODIS), China.

B. Lake Atitlan, Guatamala (NASA Earth Observatory).

C. Lake Erie, USA–Canada (NASA MODIS).

D. Ichetucknee Springs, Florida, USA (H. Paerl).

E and F. Lake Taihu, China (H. Paerl).

G. Zaca Lake, California, USA (A. Wilson).

H. and I. St. Johns River, Florida (J. Burns).

J. Liberty Lake, Washington, USA (Liberty Lake Sewer and Water District).

K. Canal near Haarlem, the Netherlands (H. Paerl),

L. Lagoon near St. Lucie River, Florida (Ft. Pierce News Tribune).