This is a composition of observations and citations from authors and institutions working in the fields of Physics, Chemistry, Biology, Ecology, and Engineering, which bring contributions to decrease the temperature of the oceans.The intention is to present these contributions, from the cited areas of science, in a single document, because most of them are scattered and separated in the various research media.We highlight the studies of algae, diatoms, and tailings from the foundry industry and agro-industry, as nutrients for diatoms.The study made it possible to raise some important aspects in exploringnew ways to contain the temperature increase of the oceans, through the biochemical action of phytoplanktonbiochemical action of phytoplankton organisms, such as algae and diatoms.The bibliographical consultations allowed us to observe that there is a great concern with global warming.