Growth curve of T. weissflogii under three different temperature and pCO2 treatments: ambient = 14°C, 450ppm (black); RCP 6.0 = 15.5°C, 800ppm (blue); RCP 8.5 = 17°C, 1000ppm (red) crossed with two N:P ratios: N:P = 16 (filled circles); N:p = 25(open circles).