population explosion

Warming waters coupled with a population explosion of sea urchins that feed on seaweed have decimated the kelp forests along California’s coastline.

Just as the widespread installation of air conditioning redefined life in much of the Sun Belt, leading to a population explosion from the 1970s onward, the Pacific Northwest’s “natural air conditioning” has always been a core of its appeal.

I could see trends of population explosions and animal populations diminishing.