Global warming is making the oceans more toxic due to spread of toxic algae. Climate change causes a series of problems for the oceans such as heating up, acidification, and the loss of oxygen.
A team of scientists investigated this by using ocean temperature data along with the growth response of two different algae, Alexandrium and Dinophysis.. These algae are the two most toxic algae in the North Atlantic and North Pacific Oceans. The study indicates that since 1982 the North Atlantic and North Pacific ocean basins have warmed and thus become hospitable to algae and algal blooms. These two algae can cause extreme health concerns that can cause paralytic and diarrhetic shellfish poisoning in humans. They could even kill people who consume contaminated shellfish. Also they can damage several marine ecosystems by killing fish and other marine life