Rainer Feistel, PhD, is a physicist and oceanographer at IOW inWarnemünde, Germany, and is the author of four previous books.
Günther Nausch, PhD, is a senior marine chemist at IOW, where he works on nutrient cycles and long-term trend observations in the Baltic Sea.
Norbert Wasmund, PhD, is a senior marine biologist at IOW, where he specializes in phytoplankton research and is responsible for biological monitoring.