I just read on Climate Progress that: Scientists... plotted the yearly spring bloom of phytoplankton - tiny plants at the base of the ocean food chain—in the Arctic Ocean and found the peak timing of the event has been progressing earlier each year for more than a decade. The spring bloom has come up to 50 days earlier in some areas in that time span This is bad because it’s a human-made, not natural phaenomenon, that has huge, bad effects.