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Animal husbandry made things worse, as domesticated animals began grazing grasslands down to the earth.
In places wehere the ground is bare - from overgrazing or from the common practice of leaving fields unplanted for part of the year - photosynthesis stops. Lal calculates that land use changes such as these have stripped 70 billion to 100 billion tons of carbon from the world's soils and pumped it into the earth's atmosphere, oceans, and lakes since the dawn of agriculture. - Geography Trivia / Ireland - "The shape and landscape of present-day Ireland—an island of 27,100 square miles [70,200 square kilometers]—were formed 10,000 years ago when Atlantic Ocean glaciers slowly began their retreat.
Radiocarbon dates place the beginning of the occupation at ca. At the time, the site, now only five miles from the Gulf Coast near Tallahassee, was nearly 100 miles inland, and Florida's landscape resembled Africa's savannahs.
Within 100 years, however, rising water at the end of the last glaciation flooded the site, sealing it with deposits that contain shells of freshwater molluscs."8,000 B. - Ancient Ruins / India - "At Poompuhur, facing the Bay of Bengal, Indian divers found a horseshoe-shaped object, measuring 85 metres in length, in water more than 23 metres deep.
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.
From around 550 BCE, many independent kingdoms and republics known as the Mahajanapadas were established across the country. [....]" [Based on: - [T. - 12/15/08]*Trivia: "[....] At the Rock Shelters of Bhimbetka humans lived throughout the Upper Paleolithic (10th to 8th millennia BC), revealing cave paintings dating to ca. The ensuing increase in food resources made possible a spectacular growth of human population between 80 B. It also required cooperative effort, particularly after the introduction of irrigation led to the establishment of settled organized societies, at first in villages and later in towns and cities, and the development of new technologies, social systems and ideologies." [Based on: Compact History Of The World, edited by Geoffrey Parker, copyright 2003, pp.
There were indications of settlement after 9,000 B. For a decade, researchers from the Florida Museum of Natural History have been excavating the Page-Ladson site, and this past fall  they uncovered the ground surface of a Paleoindian habitation at a depth of 15 feet.
During photosynthesis, plants absorb carbon dioxide from the air and transform it into sugars, carbohydrates, and other carbon-based molecules.
Some of those carbon products transfer from the roots to symbiotic fungi and soil microbes, which store the carbon in soil as humus.
These are: Pluto [250 years], Neptune [165 years], Uranus [84 years], Saturn [28 years] and Jupiter [12 years]." - Wiki Trivia - "In the 8th millennium BC, agriculture became widely practised in the Fertile Crescent and Anatolia. Decline of Indus and Saraswati Civilization - 2200-1900 BC; 6. Period of evolution of syncretic Hindu culture - 1400-250 BC [....] 8,000 B. - Bog Bodies - "Over the past centuries, remains of many hundreds of people - men, women, and children - have come to light during peat cutting activities in northwestern Europe, especially in Ireland, Great Britain, the Netherlands, northern Germany, and Denmark.
/ Cyprus - "[....] Cyprus, the third-largest island in the Mediterranean, is thought to have been first settled around 8,800 B. [....]" [Based on: article: (Cyprus Digs Reveal First Settlements May Be Older Than Thought) by Paul Tugwell - Last Updated: July 22, 2009 EDT] - Neptune-Pluto Conjunction - "There are five major planets with average cycles of motion relevant to the study of history. Development of Saraswati-Indus Civilization - 3000-2200 BC; 5.