Letters to the editor for the August 2022 issue of Scientific American
OCEAN GLOW I read Michelle Nijhuis’s article “The Mystery of Milky Seas” with great interest. I was in the U.S. Navy in 1975, and my ship was doing a cruise in the Indian Ocean early that year. We encountered the kind of bioluminescence Nijhuis describes, which was truly amazing. The experience was not just limited to watching the ocean: We had a lot of fun with this phenomenon by filling buckets of seawater with our fire mains and then spilling them across the deck.
ROBERT SKINNER Energy research adviser, Office of the Vice-President , University of Calgary, Alberta Storing these bits of CO2 is better than releasing them to the atmosphere, but the amounts involved are tiny, compared with the releases associated with fossil-fuel combustion: globally, more than 36 billion metric tons in 2021 alone. And it’s not clear that these projects are even a net gain. One report found that Quest produced more carbon than it stored. Its operator Shell has acknowledged that Quest was designed as a “demonstration project.
ERRATA “Quick Hits,” by Joanna Thompson [Advances], incorrectly said that the supernova that may have forged a space rock found in Egypt in 1996 most likely occurred some 4.6 billion years ago at the outskirts of our solar system. Rather the theory is that the supernova occurred within a giant dust cloud and eventually led to the dust solidifying on the outskirts of our solar system in the early stages of its formation, which began about 4.6 billion years ago.
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