Climate change is predicted to cause a series of maladies for world oceans including heating up, acidification, and the loss of oxygen. A newly published study published online in the April 24 edition of the Proceedings of the National Academy of Sciences titled “Ocean warming since 1982 has expanded the niche of toxic algal blooms in the North Atlantic and North Pacific Oceans,” demonstrates that one ocean consequence of climate change that has already occurred is the spread and intensification of toxic algae.