Monday, August 2, 2021
Home Climate411 Fossil leaves show high atmospheric carbon spurred ancient ‘global greening’

Fossil leaves show high atmospheric carbon spurred ancient ‘global greening’

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A 23-million-year-old leaf preserved in a onetime New Zealand lake bed, key to past atmospheric conditions. One can see veins, glands along the teeth, and holes gnawed by insects, with resulting stunted growth and scar tissue.

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