The Keeling CurveThe graph above is the Keeling Curve‚ a choppy repetitive pattern that shows the increase in the level of atmospheric CO2 in the past 60 years. Before the Industrial Revolution‚ the CO2 concentration in the atmosphere was 280 parts per million (ppmv)‚ which was sufficient for an equable climate. Since then‚ atmospheric CO2 levels have steadily climbed to 411 ppmv.
This week‚ the world established a record for the highest level of carbon dioxide per day. Another grim indicator that greenhouse gas emissions are still increasing at an alarming rate. The Scripps Institute of Oceanography‚ University of California San Diego measured 421.37 parts/million of carbon dioxide in Earth's atmosphere on May 11. This was higher than the May 2021 record of 418.95ppm.
421.37 parts per Million (ppm)‚ CO2 in the air‚ 11-May-2022 https://tco/kugi1wkg1u -- Keeling_Curve (@Keeling_curve)
This was due to an abrupt decrease in airplane travel‚ driving and economic activity. The world stands a 50% chance of global temperatures rising 1.5 degrees Celsius above preindustrial levels if emissions are not significantly reduced‚ according to a meteorological service in the United Kingdom. 48% shows that the chance of at most one year surpassing 1.5degC over pre-industrial levels is very low (55%) The report stated that there was only one in ten chances (10%) for the 5-year average to exceed this threshold. The Scripps Institute. Notes one its website the amount of carbon dioxide in the atmosphere determines how much global temperature will rise over pre-industrial levels. “A recent authoritative report the authors concluded that an average level of carbon dioxide (370 to 540ppm) has a 66% probability of maintaining the 2°C global warming limit. A best estimate is 430ppm. The global temperature will rise over time as it takes for CO2 from humans to reach equilibrium. We aren’t certain that 2°C warming is safe‚ at least for all people on this planet.