Carbon dioxide, the climate change driver has less scope for storing, before, thought before

According to a new study, the world has very few places to store carbon dioxide underground safely underground, which helps reduce its abilities, which helps prevent global warming.

This study appeared on Wednesday in the journal NatureIt has been found that the global carbon storage capacity is 10 times less than the previous estimates when after rejecting geological formations, where gas leaks can be leaked, can trigger the earthquake or pollute groundwater, or have other limits. Researchers said that this means that carbon capture and storage will only have the ability to reduce heat by 0.7 degrees Celsius (1.26 Fahrenheit) due to human.

“Carbon storage is often presented as a way out of the climate crisis. Our searches make it clear that this is a limited tool,” and confirms that “the University of Maryland’s World Stability Center for World Stability, a research professor, was also a research professor of global stability. There is a senior researcher in the program.

This study is the latest knock on a technology, which has been promoted by the oil and gas industry for years, which is often considered as climate solution. Today, carbon capture is far from deploying a scale despite billions of dollars in investing worldwide, and currently the amount of carbon occupying is a small part of billions of tons of carbon dioxide each year.

Challenge assumptions

The 2015 Paris Agreement has demanded to be limited to the average global temperature to 2 degrees Celsius (3.6 degrees Fahrenheit), but ideally, below 1.5C (2.7F) compared to the early 1800s.

Alexandry, co -author of the University of Lisbon University, said that many scenes of removal of carbon and relying on storage are “very” because in the past estimates, the weak areas that may not be appropriate may not be appropriate.

“It was never systematically challenged and experienced,” he said, adding that the study was the first testing of which areas should be avoided, which causes them to reduce the risk of people and the environment.

Researchers said that this does not mean that carbon capture and storage are not important for maintaining global temperatures – but countries should give priority how they use limited storage and do so with a sharp and deep emission reduction.

Kerabil said that this technology should be ideally used for sectors that are difficult for decoration, such as cement production, aviation and agriculture instead of increasing the life of pollution power plants or prolonging the use of oil and gas.

Industry officials defended carbon capture and storage because it is naturally low -risk and storing carbon dioxide in emerging technologies, such as basalt formations, can increase the total amount of dramatically storing, where it becomes minerals.

In addition, its use is “not optional if we hope to remove global warming,” said Jessy Stolar, executive director of carbon capture coalition.

Rob Jackson, head of the Global Carbon Project, a group of scientists monitoring greenhouse gas emissions, praised the study for this caution. And although he is hopeful that the carbon capture technology will work itself, he believes “will be very low storage” because I don’t think we are willing to pay the price. “

“If we are not willing to reduce the emission today, why do we expect people in the future to pay for our pollution automatically?” Jackson said. “We are just continuing pollution and is not solving the root of the problem.”

How does it work

Carbon dioxide, which is caused by burning of foam fuel, when the environment is released, traps the heat near the earth, where it lasts for hundreds of years and increases global temperatures.

Industries and power plants can install Equipment equipment to separate carbon dioxide from other gases, or it can be caught directly from the environment using vacuums.

The caught carbon is compressed and sent to a place where deep -term storage can be installed in deep snacks or basalt formations for long -term storage and long -term storage in coal detection.

In the United States, such projects have faced criticism of some conservatives, who say it is expensive and unnecessary, and from environmentalists, who say that it has failed permanently to capture maximum pollution, and that the use of oil, gas and coal is a foothold.

The most commonly used technology facilities allow for about 60 % of their carbon dioxide emissions during the production process to receive and store it. According to the International Energy Agency, anything above this rate is more difficult and expensive.

Gaden, the central author, said it was clear that scaling carbon storage would be important for pure zero emissions and eventually reduce them, and said that the use of basalt is promising. But the world cannot wait for it before making a decisive action to eliminate the emissions of the fuel.

“If we extend our dependence on foolish fuel with the expectation that we will expect that we are cutting the carbon underground not only with impossible tasks not only to deal with future generations, but also by limited ways of cleaning it,” he said.

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