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The scale of carbon emissions associated with industrial activity and land clearing is leading to a rise in atmospheric greenhouse gases (GHG) at a rate unprecedented in the Cainozoic record, excepting events triggered by global volcanic eruptions, large asteroid impacts and methane release. Such an evidence is leading to attempts at classification of a new geological era—the Anthropocene. The era...
The vast tropical rainforest in Amazonia, once presumed a virgin wilderness vulnerable to climate forcing and inimical to indigenous cultures, is now shown by prehistoric, ethnographic, and ethnohistoric data to be almost the opposite: a human habitat resilient to environment change but much influenced by thousands of years of occupation. The earliest foragers quickly penetrated the region ca. 13,000...
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