The carbon dioxide concentration in Earth’s atmosphere is expected to pass a dangerous threshold in 2021 and exceed 417 ppm (parts per million). This indicates a 50% rise since the industrial revolution that began in the 18th century. The forecast was made by the Met Office which is the United Kingdom’s national weather service. The forecast was made by collecting data from the Mauna ... https://www.coherentmarketinsights.com/news/atmospheric-co2-will-reach-an-alarming-high-in-2021-forecasts-suggest-261