Protect the Arctic from “dangerous” climatic technology, the scientists warn

Plans for combating climate change by manipulation of the Arctic and Antarctic environments are dangerous, they can hardly work and can distract from the need to discard fossil fuels, warned dozens of polar scientists.

These polar “geogening” methods cool the planet with non -standard ways, such as artificially thickening sea ice or throw into the atmosphere tiny, reflexive particles.

They attracted attention as potential future tools to combat global warming, as well as carbon emissions.

But more than 40 researchers say they can bring “serious damage to the environment” and urged countries to simply focus on reaching pure zero, the only established way of restricting global warming.

Geoengineering – intentionally interfering with the climate system to combat the impact of global warming is one of the most contradictory areas of climatic studies.

Some types are widely taken – Removal of carbon dioxide that warms the planet For example, from the atmosphere with the help of planting trees or using machines are designed parts of pure zero efforts.

Pure zero means balance the number of “greenhouse” gases produced by human activity and the number is actively removed from the atmosphere.

But some more radical geogenic ideas such as the reflection of sunlight, “are dealing with symptoms of climate change rather than causes,” said lead author Martin Sigert, Professor of Geological Sciences University Exeter.

For fans should study the methods that could help increase the speed of temperature that are Already bringing serious consequences for people and ecosystems around the world.

But for opponents, the risk is just too big – especially for the delicate polar regions, which remains unknown about.

Scientists behind the new assessment, published in the magazine “Frontiers in Science”, have considered the evidence of the five most widely discussed ideas of the polar geogen.

They say that everyone does not meet the basic criteria for their feasibility and potential environmental risks.

One such sentence is the release of tiny, reflective particles called aerosols high into the atmosphere to cool the planet.

It often attracts attention among Internet ConspiracyWhich falsely claims that the condensation trails in the sky-blowing pair created from the aircraft is a testament to the ominous large-scale geogen today.

But many scientists have more legitimate problems, including violations of weather conditions around the world.

With the potential effects that also cause the question who decides to use it-specially in the Arctic and Antarctic, where control is not simple.

If the country had launched geogening against other people’s wishes, it could “increase geopolitical tensions in the polar regions,” reports Dr. Valery Mason Delmot, a senior scientist at the University of Paris in France.

Another fear is that although some ideas may be theoretically possible, huge costs and time for scaling mean that they can hardly change the situation, the review said.

One of the BBC News Ideas Recently Considered Plan Pump sea water over the surface of the Arctic Sea-Forest In the winter to thicken it, giving the ice more chances to survive the summer.

But to cover 10% of the Arctic may need about 10 million seawater pumps, it believes that one assessment.

A more fundamental problem is that these types of projects can create the illusion of alternatives to the reduction of human emissions from gases that warm the planets.

“If they move … Then they distract because for some people they will be a solution to the climatic crisis that does not require decarbonization,” said Professor Sigert.

“Of course, this would not be true, and so we believe that they can harm.”

Even geogenic research supporters agree that this is, in the best case, a supplement to zero rather than replacement.

“The need to reduce emissions comes first … Practically everything we do without it is useless,” according to Dr. Shown Fitzgerald, director of the Cambridge University Climate Center, which participated in some of the selected projects.

The assessment raises “very important problems” regarding some ideas, but they should be balanced against the risks of “dangerous climate condition”, he said.

Like many other Geoengineering Research fans, D -R Fitzgerald does not yet support the deployment of it on a large scale, and acknowledged that further investigation may reveal that ideas are “barrels”.

But he claimed that additional research would allow the society to make “more substantiated decisions” as to whether they could help or interfere with climate change.

Recently announced an agency supported by the UK government Nearly 60 million pounds for such researchAlthough the government says it does not plan to deploy them.

But the authors of the new assessment consider these projects so unrealistic that the efforts will be better aimed at decarbonization and polar studies.

“There are several basic domestic truths that do not need a lot of research to come to the conclusion that they are not really viable,” said Professor Sigert.

The UK Government’s press secretary said: “Our priority is to reduce greenhouse gas emissions from human activity and adaptation to the inevitable consequences of climate change.”