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Embed code for: ISN Assignment 2
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ISN Assignment 2
A new study has provided evidence that
http://scienceheathen.com/2012/11/05/sea-level-rise-is-faster-than-predicted-previous-estimates-of-rate-of-future-sea-level-rise-were-likely-too-low-according-to-new-research/climate change was a leading cause of the great Indus or Harappan
http://scienceheathen.com/civilization collapsing 4000 years ago. At its height, the Indus civilization contained up to 10% of the world’s population, extending over 1 million square kilometers — from across the plains of the Indus river, to the Arabian sea, to the Ganges. research suggests that the decline in monsoon rains led to weaker river dynamics, and that this played a key role in the development and collapse of the Harappan culture, which relied on river floods for their agriculture. One of the most striking things the researchers found was a mounded plain 10-20 meters high and 100 kilometers wide, running almost 1000 km along the Indus, built from sediment the Indus was carrying. By 3900 years ago, as the rivers were drying up, the Harappans had an easy escape to the east, near the Ganges, where the monsoons were still occurring regularly. Mapping all of the archaeological and geological data together shows that the Harappan culture began to form only after the monsoons weakened and run-off from the mountains was reduced enough to enable agriculture along the river. Today, the remnants of the Harappan civilization lie in the middle of a vast desert region, far from any flowing rivers. Whereas Egypt and Mesopotamia have been a part of Western historical memory.