2. Is it true that if we remove 2 GtCO₂ from the atmosphere, the ocean and land will outgas and equilibrate with the new atmosphere so that we will only achieve a reduction of 1 GtCO₂?
4. If the difference between 180 and 280 ppm CO₂ was the difference between an ice age and a temperate climate, why does an increase of another 150 ppm CO₂ lead to "only" ~3°C of warming?
9. Why should we contemplate atmospheric CO₂ removal (CDR) when we can just decrease the amount of solar radiation reaching the Earth's surface (solar radiation management; SRM)?
In the 40s and 50s, atomic scientists though about nuclear as energy of the future. The US Atomic Energy Commission published Energy in the Future in 1953 where they argued that burning fossil fuel releases CO₂, which affects the climate & sea level 1/n
1953…when Elizabeth II was crowned Queen of…all those countries! This was 5 years before Dave Keeling starting measuring atmospheric CO₂ at Mauna Loa in Hawaii. It's worth noting that Keeling's initial research on CO₂ was funded by the US Atomic Energy Commission. 2/n
Energy in the Future pointed out that temperature had been increasing, glaciers were retreating, and sea level was rising, and speculated that it was due to rising atmospheric CO₂ from land use change and fossil fuel burning! In 1953…68 years ago! 3/n
🧵 Enough people have shared this clipping from the NZ paper Rodney and Otamatea Times, Waitemata and Kaipara Gazette that it's worth looking at the original Popular Mechanics article from which it's reprinted, also from 1912. 1/5
"Remarkable Weather of 1911", starts by describing the extreme weather of 1911 ("cities baked and gasped for breath" "flood-gates of the heavens were opened" "violent storms" "killing frost") and above average temps.
It speculated this is part of natural variability. 2/5
After listing evidence for climate variability, it speculates:
"It is highly improbable that the mean temperature will change sensibly in a thousand years, and very probable that it will not be much different from what it is at present ten thousand years from now." 😬 3/5