Smog is also a dilemma for water pollution in China's shale gas mining

According to German media, China's shale gas reserves are about 30 trillion cubic meters, ranking first in the world, 1.5 times more than the United States. Among them, nearly half of the shale gas is located under the ground in Sichuan.

According to the website of the German Voice Radio on August 8, the "Southern German Newspaper" focused on the shale gas mining in China and its accompanying environmental problems with the title "Sichuan's Curse and Gospel". The article said that Sichuan's shale gas reserves are very rich.

The article said that the impact on the environment can be seen in Yibin, a small town. Around Yibin, a gas well rises from the ground. These huge, booming machines pump water, sand, and chemicals into the ground at hundreds of atmospheric pressures. At a depth of 1000 meters underground, these liquids are pressed into the gap between the rocks. The fine structure of the rock was fractured, and the natural gas that was hiding there was flocking to the ground.

The article said that the exploitation of shale gas will have an impact on the environment. Reports from the United States have already explained this. Each gas well requires approximately 4 hectares of land for the storage of tanks for freshwater, chemicals and wastewater; in addition to roads and gas pipelines. In order to let the natural gas in the rock flock to the ground, a total of about 600 chemicals are used. American biologist Erik Kiviat has pointed out that hydraulic fracturing mining shale gas will result in reduced living space, chemical pollution, and poor water quality. ”

The author said that China accepts such a price because China's current energy supply is 2/3 from coal. “In old power plants, factories, and heating boilers, coal is burning everywhere and polluting the atmosphere. According to estimates, about 400,000 to 1.2 million Chinese people die prematurely every year because of particulate matter pollution. Greenpeace China Branch Li Yan said that the smog has become a serious problem in the eastern Chinese cities and has created huge pressure on public opinion. Therefore, the government urgently needs to make breakthroughs in the energy field.

Through the construction of gas pipelines, Sichuan's shale gas will be transported to Shanghai. Natural gas is considered a relatively clean energy source and produces relatively little emissions. Therefore, shale gas also carries the hope of climate protection. The Chinese government promises that by 2030, China's carbon emissions will peak and no longer grow. If there is no natural gas, this plan can hardly be implemented.

The author wrote at the end of the article, coal or natural gas? Is smog or mining shale gas? Is water used for energy or for drinking? ... In the end, the government must weigh and try to find a way out. In the past, China has chosen economic growth and new energy sources when it comes to this choice.

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