Environment

Showing 37–40 of 40 results

The Virgin Lands 1960–70
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The Virgin Lands 1960–70

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In 1953, the new Soviet leader, Nikita Khrushchev, began the Virgin Lands campaign to cultivate the steppe lands, mainly in northern Kazakhstan, for grain production. This area was chosen because it had higher rainfall and better soil than neighbouring regions, as well as a low population. The campaign was successful... More
The World 50 Million Years Ago
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The World 50 Million Years Ago

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In the Eocene, commencing around 56 million years ago, the continents began to assume their modern configuration. Australia calved from the Antarctic portion of the old supercontinent of Gondwanaland, trapping a cold current round Antarctica, which would eventually become circumpolar with the separation of South America. India’s collision with Siberia... More
The World in 50 million years
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The World in 50 million years

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Paleogeographic research indicates that continental drift operates in a broadly cyclical manner, with the continents fragmenting and dispersing, before coalescing once more into a supercontinent. Supercontinents such as Rodinia, Pannotia and Pangaea seemed to have formed at approximate intervals of 400 million years, which would imply that we are moving... More
Transformation of American Flora 1620, 1850, 1990
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Transformation of American Flora 1620, 1850, 1990

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When Europeans first arrived, America’s indigenous population were either nomadic or subsistence hunters, managing, rather than supplanting, the native vegetation. During the 18th century, the colonization of the eastern seaboard saw natural forest cover replaced with plantation monocultures to the south, mixed arable farming to the north. During the 19th... More