Global carbon dioxide levels reached a new high last year, surpassing the 400 ppm mark entirely

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Global carbon dioxide levels reached a new high last year, surpassing the 400ppm mark. Phoenix News Key point: Over the past 10 years, global atmospheric carbon dioxide concentrations have remained around 400ppm; the final straw that pushed things over the edge was the El Niño phenomenon, which peaked in mid-last year. According to reports by foreign media cited by Reference News on October 26, the Earth has entered an era in which the concentration of carbon dioxide in the atmosphere exceeds 400 ppm (1 ppm equals one part per million). As the primary gas responsible for the greenhouse effect, carbon dioxide has become the culprit behind the increasingly irreversible climate changes caused by global warming. According to a report on the website of Spain’s ** newspaper dated October 24, in May 2013, the Mauna Loa Observatory in Hawaii detected for the first time that carbon dioxide concentrations exceeded the 400 ppm mark. At the beginning of the Industrial Revolution, this value was 278 ppm. This concentration represents a state of natural balance among the atmosphere, oceans, and biosphere. This balance was disrupted by the continued use of fossil fuels (first coal, then oil). However, the 2013 record was merely incidental, localized, and temporary; in the following months, the figures began to decline. However, according to the World Meteorological Organization on the 24th, global atmospheric carbon dioxide concentrations in 2015 exceeded 400 ppm across the board. In a statement, WMO Secretary-General Petteri Taalas said regretfully, “In 2015, with the adoption of the Paris Climate Agreement, an optimistic era of new, comprehensive action arrived.” But the new record in carbon dioxide concentrations marks a new era for global warming as well. ” He believes that with carbon dioxide concentrations so high, it is extremely difficult to achieve the goal of keeping global temperature rises within two degrees Celsius by the end of this century. Taras said, “The real problem is that carbon dioxide can remain in the atmosphere for thousands of years, and even longer in the oceans.” If we cannot curb carbon dioxide emissions, we will be unable to combat climate change or achieve the goal of controlling temperature rise. ” Reports indicate that over the past 10 years, global atmospheric carbon dioxide concentrations have remained at around 400 ppm, without ever exceeding this level. According to analyses by the U.S. **National Oceanic and Atmospheric Administration, the final straw that brought down the camel was the El Niño phenomenon, which peaked in mid-last year. The impacts include widespread droughts in tropical regions and a reduced capacity of rainforests to absorb carbon dioxide. But the El Niño phenomenon has ended, yet global atmospheric carbon dioxide concentrations have not dropped below 400 ppm.