The article explains how calcium carbonate, a common compound found in the Earth’s crust and in the sea, is used by sea creatures to create various structures such as shells and pearls. Mollusks, like oysters, use proteins and crystal structures to manipulate calcium carbonate and create different types of shells. Nacre, a special form of aragonite, is particularly strong and versatile, and is used by mollusks as a defense mechanism to create pearls.
A survey found that nearly two-thirds of Americans have eaten plant-based meat alternatives, motivated by health and environmental benefits. However, the article notes that there is not enough data to determine if plant-based meats have the same health benefits as replacing red meat with other options. Plant-based meat substitutes have a significantly lower environmental impact than farmed meat, but it remains uncertain how much lab-grown meat will reduce the environmental impact of the meat industry. Overall, if individuals care about animal welfare, public health, and the environment, plant-based meat alternatives are recommended.
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