27 books
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Anthropocene
“
Considering chickens alone, their fossils may be a marker for the Anthropocene. The body size and body shape of today’s “broiler chickens” are distinct from that of wild fowl of their early twentieth-century cousins. Their worldwide distribution and massive population size will probably ensure that they will be well represented in the future fossil record. Future geologists might use a “chicken signal” to indicate that the strata they are examining are close to the start of the Anthropocene.
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― How the Mountains Grew: A New Geological History of North America
― How the Mountains Grew: A New Geological History of North America
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A few years ago some geologists sifted through the data [and] estimated that the amount of sand, soil and rock we humans mine and quarry and dredge each year is some 24 times greater than the amount of sediment moved each year by Earth’s natural erosive processes, which is to say rivers grinding away sand and sending it down towards the sea. Humans, in other words, are a considerably bigger geological force than nature itself, and have been, according to the data, ever since 1955. Or – another w
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― Material World: The Six Raw Materials That Shape Modern Civilization
― Material World: The Six Raw Materials That Shape Modern Civilization
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