The research station, at an elevation of 11,135 feet on the summit of a picturesque volcano, has been monitoring the weather and chemistry of the atmosphere continuously since the 1950s. #ClimateAction
https://twitter.com/MesMitch/status/1379330693172490245
When the station began collecting CO2 measurements in the late 1950s, atmospheric CO2 concentration sat at around 315 parts per million. #ClimateAction
On Saturday, the daily average was pegged at 421.21 parts per million — the first time in human history that number has been so high. Previously, it had never exceeded 420 parts per million.#ClimateAction
Carbon dioxide emissions are a product of electricity production, transportation and industry. The United States alone emits more than 5 billion metric tons of CO2 annually — the weight of 13.2 million fully loaded Boeing 747s, or roughly 68,000 Washington Monuments.
About half of emitted CO2 remains in the atmosphere and induces warming, while more than a quarter is absorbed into the oceans, where it acidifies the water and disrupts marine ecosystems.#ClimateAction
There is special significance in reaching and surpassing a concentration of 416 parts per million. It means we’ve passed the midpoint between preindustrial CO2 levels, around 278 parts per million, and a doubling of that figure, or 556 parts per million.#ClimateAction
What a doubling of CO2 means
The anticipated doubling of atmospheric CO2, which is likely by the year 2060, has been connected to a predicted three-degree or greater warming of the planet.
The anticipated doubling of atmospheric CO2, which is likely by the year 2060, has been connected to a predicted three-degree or greater warming of the planet.
A study released last year found that doubling CO2 levels will probably lead to a temperature rise between 4.1 and 8.1 degrees Fahrenheit (2.3 and 4.5 degrees Celsius), ruling out more modest warming scenarios.
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Data obtained from glacial ice cores indicates that modern-day CO2 levels are higher than at any point in at least the past 800,000 years.cdiac.ess-dive.lbl.gov/trends/co2/ice…
Methane, also a significant driver of the warming climate, has shown a “huge and unprecedented increase” too, wrote the British Antarctic Survey. Agriculture, specifically the raising of livestock and manure management, is a primary source of methane in the United States,
followed by petroleum and natural gas production, as well as coal mining and landfills.americangeosciences.org/geoscience-cur…
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