In addition, when algae purifies water, it releases oxygen. Also, in today's world the oceans suffer from oil spills or from other toxic spills. Algae not only saves the marine life from massive devastation, but has helped to save humans from nuclear spills. When children in the Ukraine were exposed to high levels of radioactivity, they were given four grams of Spirulina, a type of blue-green algae, a day. As the world runs out of fossil fuels that produce much of the energy we use to heat our homes, drive our cars and grow our food, humans must find another energy source.
Most farmers deplete the supply of natural gas and petroleum to make fertilizers and pesticides.
Farmers must use fertilizes to provide their crops with nitrogen. Farmers can grow algae simultaneously with their crops. The algae and the crop form a relationship. The crop gives the algae nutrients and the algae gives the crop nutrients. One of the most important nutrients that algae provides for the crop is nitrogen.