If we visually compare the volume of our planet with the separated volume of water in the world ocean, we will see that the volume of all the sea water of our planet is just a small blue drop. And indeed, the water of the world ocean is only about 1/1000 of the volume of the Earth. And it is this blue drop that is the most important element that makes our planet unique and suitable for life. There is no doubt that life exists on our planet as long as there is a habitable ocean…
But marine ecosystems now face a unique challenge due to the anthropogenic impact of carbon dioxide, ecologists warn. The study, covering the period from 1800 to projections to 2100, found unprecedented warming and acidification that will create new climate conditions in which many ecosystems will not be able to survive. During the study, a quantitative assessment of the sea surface environment was carried out, based on models of the chemical composition of carbonates and temperature.
The results showed that between 1800 and 2000, the sea surface did not undergo extreme changes. However, between 2000 and 2100, 10-82% of the ocean is projected to undergo significant changes, and 35-95% will become uninhabitable. These estimates exceed projections for terrestrial systems, underscoring the uniqueness and severity of the challenges facing marine species. Scientists warn that without mitigation, many species will not be able to adapt to rapidly changing conditions, and evolutionary adaptation may be necessary to maintain biodiversity.
This study highlights the urgency of taking action to protect and restore marine ecosystems.