They cover 70% of the earth's surface, provide more than 50% of the oxygen and absorb 90% of the heat and a third of man-made greenhouse gas emissions - the world's oceans are extremely important for the development of the global climate. The progressive warming of the oceans as a result of climate change is all the more alarming.
It endangers the habitats of marine animals through lack of oxygen and acidification, leads to extreme weather such as hurricanes and heavy rainfall, but also promotes forest fires.
For almost half a century, sea temperatures have been steadily above the 20th-century mean, by 0.67 degrees Celsius last year. Even if the development is not linear, there is an alarming upward trend.
More on the fundamental importance of the oceans in the groundbreaking study by the FERI Cognitive Finance Institute "Sustainable Blue Economy", in cooperation with Dr. Steffen Knodt from Fraunhofer IGD and Prof. Dr. Martin Visbeck from the GEOMAR Helmholtz Center.
The study can be found in the download area of this page.