Did you know that life on Earth largely depends on a microscopic organism that most people have probably never heard of? We are talking about phytoplankton. Besides providing sustenance for numerous marine species,
phytoplankton does away with harmful carbon dioxide and helps regulate our planet's atmosphere.
So, what do you think would happen if this vital organism became extinct? To find out the consequences of such a catastrophic event, click through the gallery and examine the scenario.