Have you noticed that at some point the world stopped listening to scientists? Their place in the public space is increasingly occupied by the charlatans or home-grown experts whose knowledge about the world do not match reality. But 40 years ago, scientists warned of devastating effects of climate change, but it seems that no one heard. Today, however, we still have a chance to prevent the destruction of the world’s ecosystems. So, according to the results of a new study, which involved scientists from around the world, if you are urgent to undertake a number of recommended measures, the marine life in the oceans can be restored by 2050. Let me remind you that poaching, climate change and pollution of the oceans of plastic (and not only) waste caused the deaths of a large number of the inhabitants of the sea. But what of the scientists?
What happens to the oceans?
Our regular readers probably know that a violent human activity has already led to an increase in the average temperature on Earth. Thus, according to the latest report of the International panel on climate change (IPCC) on the problems of the oceans due to increased temperatures of the water layers in the ocean mix worse, and therefore, oxygen and nutrients that affect the lives of the inhabitants of the ocean depths, becomes smaller. This process is called oxidation water – it destroys coral reefs, causing reef fish to migrate to other regions, which could lead to collapse of ecosystems. Needless to say that tons of waste caught in the oceans, along with poaching, make the problem much more serious. Also do not forget about the melting of glaciers, which leads to rising sea levels and threatens the inhabitants of coastal regions. We have already talked about the current state of the seas and oceans informed.
Ecosystem is a complex dynamic system that integrates all living organisms and their habitats. Roughly speaking – all on the planet is interconnected, but you probably already knew that, didn.
A study published in the journal Nature gives hope for a brighter future. Scientists have found that despite the huge amount of garbage in the oceans that humanity destroyed several species of marine animals and fish, the ocean can recover quickly enough. An example of this is the restoration of the population of humpback whales after the ban on commercial whaling. Due to a number of restrictions imposed by governments of different countries from 2000 to 2019, the number of marine species under threat of extinction decreased from 18% (2000) to 11.4% (2019).
During the work a group of scientists from the University of science and technology king Abdullah (KAUST) in Saudi Arabia, found that marine life was quite resistant to the damage caused by our intervention. However, despite the fact that the population of the World ocean is able to recover by 2050, the time to achieve this goal quite a bit. The increase in temperature, pollution, plastic and other waste as well as oxidation of water – all these factors have a negative impact on marine flora and fauna. So, about 70-90% of all existing coral reefs are projected to disappear in the next 20 years. Meanwhile, other studies have shown that climate change is a cause of reducing fish populations.
The authors of the new study found that despite the loss of marine biodiversity in the 20th century, this process has slowed down and some populations have recovered. As mentioned above, the reason for this is the effective measures for the protection of marine biodiversity that took the governments of different countries. But if the inhabitants of the sea and ocean depths with time are capable of recovering populations, and the measures taken by the authorities is effective, what they offer scientists?
How to revive the Earth’s oceans?
According to scientists, if you stop pollution of the seas and oceans, and climate change, 20-30 years would be sufficient to ensure that the situation is normalized. However, to achieve this goal will require decisive and large-scale actions, and the time we have quite a bit. As it turned out, the preservation of communities of reef fishes increases the stability and vitality of coral reefs and facilitates the process of recovery. In other words, if the fish populations will survive, it will help to save coral reefs. But how to achieve this?
Researchers point to the nine basic factorswhich are of importance for restoring the oceans and seas. So, if in the near future to restore sea grasses, coral reefs, oyster reefs, deep-sea regions, salt marshes, mangroves, seagrass, fisheries and megafauna, the oceans can take its original appearance. However, the problem, as is often the case, lies in the financial sector – large-scale actions that will help restore the seas and oceans will cost governments about $ 20 billion. Agree, this is not such a big sum, especially when we are talking about the preservation of life on Earth.