Fig. 2: Trends of global coastal phytoplankton blooms between 2003 and 2020.
From: Coastal phytoplankton blooms expand and intensify in the 21st century
a, Spatial patterns of the trends in bloom frequency at a 1° × 1° grid scale. The latitudinal profiles show the fractions of grids with significant and insignificant trends (positive or negative) along the east–west direction. b, Interannual variability and trends in annual median bloom frequency and total global bloom-affected area. The linear slopes and P-value (two-sided t-test) are indicated. The shading associated with the bloom frequency data represents an uncertainty level of 5% in bloom detection. Map created using Python 3.8.
