The first map of Ocean Wilderness shows that "far from human security"

The first complete mapping of the wilderness of the ocean revealed that no part of the ocean was untouched. Is spared by humans, and only 13 percent could be classified as "wilderness". James Watson of the University of Queensland, author of the study, in a video summary for the report: "The Comprehensive Analysis of Human Impacts in All Global Marine Ecosystems," published Thursday in Current Biology, Categorized and mapped all the ways humans have changed the ocean, such as fishing, transportation and pollution.

The study noted each marine area according to the intensity, number and cumulative effect of the human impact. the status of the geographic location. To be classified as "wilderness", the study defined the area as "primarily free of human disturbance."

Cumulative stresses on the ocean can be compared in some way to human health. "If you have a low grade fever and a broken arm and leg injury, and you start adding these things in the air, everyone is pretty bad, but together you are in very bad shape.You have to hurry to the doctor.And it's the same idea as what we Let's talk in the ocean, "said Ben Halpern, a study author and professor of marine biology at the University of California at Santa Barbara

. is depressing, "said Kendall Jones, Senior Author and Conservation Planning Specialist at the Wildlife Conservation Society," Often you have a picture in your head of these wild places where people do not really go, and this Is not the case. We are really going everywhere now. There is not much of the ocean that remains as it once was. "

Coastal The areas are the most disturbed by humans, and they are also the most productive," said Halpern, "for example, coral reefs and mangroves are close to many cities, providing food and protection from wave damage, and are full of underwater life Forty percent of the world's population lives near the ocean and relies heavily on its resources.

"We do not can consider that a few places today "wild", including tropical Pacific coral reefs and both poles, but Terry Hughes, a coral reef expert and professor at James Cook University, who n & # 39; 39, did not participate in the study, said: "These countries are among the most vulnerable on the planet. Australia and Chile. The study indicates that this may be due to low human populations. The Northern Hemisphere had very few designated areas of wilderness

Most wilderness areas were in the "high seas" often fictionalized, according to the study.

"The Wild West Frontier There: They Are So Far Halpern says," With the man changing more and more our planet, "nowhere in the sea is entirely free of human impacts Jones says, "We know that wilderness areas are really important to biodiversity and the planet, but for the time being no international agreement is working to protect them."

Biodiversity, or the variety of life on the planet "We depend on the ocean for a growing proportion of our protein," and marine animals need vast areas of untouched wilderness to recover, repopulating, he said.

With the disappearance of the pack ice, more and more areas considered as wild could be lost, according to the authors.New technologies now reach previously inaccessible areas Less than 5 percent of the marine wilderness world is within protected areas. About 7% of the total ocean is protected, regardless of wild status, and only a quarter of the world's coral reefs are protected.

Scientists conducted their analysis twice: once with climatic stressors and once without them. If they included the four defined climatic constraints, they eliminated every place on the planet as a wilderness. If climate change is included, the entire ocean is disrupted by people. Scientists have excluded climatic factors from some of their analyzes to obtain the number of remaining wild areas by 13%, with areas affected but at low levels.

"We really need to do something about climate change – and pretty much everywhere, and it's already creating all kinds of changes in the ocean that impact not just nature, but about people too, "said Halpern

.

" There is still time to tell the difference, I still have hope for the oceans, it's not not too late, 13% might not seem like a lot, but that's a lot of the area that is still relatively untouched, "said Halpern." This comes down to the willingness of the people and politicians to be concerned enough about it. Ocean to make these changes. "

(This story was not edited by NDTV staff and is generated automatically from one stream.)