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Chert, jasper and quartzite were often used by humans during this period. With the right stewardship, Lal says, the agricultural soils of the world have the potential to soak up 13 percent of the carbon dioxide in the atmosphere today - the equivalent of scrubbing every ounce of CO2 released into the atmosphere since 1980.[....] For millions of years, a natural partnership between plants and soil microbes has helped regulate carbon dioxide levels in the atmosphere.
In January , Indian marine scientists discovered what may be the more extensive remains of two ancient cities in the Gulf of Cambay.Larger settlements like Jericho arose along salt and flint trade routes. This chronology was called into question in 1996 by new archaeological evidence.Northern Eurasia was resettled as the glaciers of the last glacial maximum retreated. Following a two-year study commisioned by the English Heritage Foundation, researchers concluded that the great circles of blustones and sarsens had in fact been put up between 2,600 BC and 2,030 BC. - Neolithic Age - "According to popular history, this period [10,000 - 8,000 B.The first known permanent settlements appeared over 9,000 years ago and gradually developed into the Indus Valley Civilisation, dating back to 3300 BCE in western India.It was followed by the Vedic period, which laid the foundations of Hinduism and other cultural aspects of early Indian society, and ended in the 500s BCE. - Agriculture & Farming - "The exact origins of agriculture remains unknown, but once chosen, farming developed a momentum of its own: there was no easy turning back, and the very success of the new lifestyle induced other fundamental changes.
[....] Suttie said they have found some material in the campsite that came from central Maine. - Human Occupation / South America - "The altiplano of Peru and Bolivia appears at first sight to be a very inhospitable land.