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Accelerating global warming and amplifying feedbacks: The imperative of CO₂ drawdown

by Andrew Glikson Satellite measurements indicate that 2021 was one of the warmest years on record, with the past seven years being the hottest period recorded globally ( Met Office , January 10, 2022). Attempts at global emission reductions, lowered in part due to COVID-19 economic slow-down, appear to have little effect on atmospheric CO₂ rise, as indicated by the current rise of atmospheric carbon dioxide to record high levels of 420 ppm despite reduced emissions in 2020 -2021 (Figures 1 and 2). Figure 1. A. Mean global CO₂ levels from 800,000 years to the present (NASA).         B. Mean global temperature rise from 1850 to 2021 (Berkeley Earth). As stated by CarbonBrief : “The year so far has been one of extremes, featuring record-shattering heatwaves, wildfires and flooding, as well as the warmest-ever northern-hemisphere summer – June, July and August – in the global land-surface record.” Whereas climate negotiations mostly focus on possible reductions i...

Alaska On Fire

Fires are raging over Alaska. The satellite image below shows the situation on July 8, 2019. The satellite image below shows the situation on July 9, 2019. The image below shows carbon monoxide levels as high as 43,443 ppb over Alaska on July 8, 2019. Carbon dioxide levels were as high as 561 ppm over that same spot in Alaska on July 8, 2019. Carbon dioxide levels were as high as 888 ppm on July 10, 2019, as the image below shows. The image below shows a forecast for July 10, 2019, with temperatures forecast to be as high as 35.5°C or 95.8°F. What causes such extreme weather events to occur? The Arctic has been heating up faster than the rest of the world, due to self-reinforcing feedback loops such as the decline of the snow and ice cover in the Arctic, which results in less sunlight getting reflected back into space and more sunlight instead getting absorbed in the Arctic. As the image on the right shows, sea surface temperatures in the Bering Sea were as high as 19.8°C or 67.64°F...