Likewise, the hunger for meat proteins is driving land farming to levels that can impinge on the health of man and beast.
Weiss believes this climate change initiated a mass migration away from dry-land farming to the creation of irrigated fields along the Tigris and Euphrates rivers, allowing the people to build some of the earliest institutions of civilization.
Plans are also under way to return part of the land to farming and to build homes.
West sold the cattle and rented the land for farming.
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But while the presence of humans has been a major factor in increasing deforestation and the clearing of land for farming, the absence of humans can also be a threat to trees.
For example, in the island nation of Papua New Guinea, an increase in population growth coupled with rising sea levels is decreasing the amount of crop land making farming very difficult for the indigenous people of the region, according to the U.N.
Surveyors believe uncertainty over the reform of the Common Agricultural Policy and the future of farming has also reduced supply and demand for land among the farming community.
If you don't allow marginal land to be built on, they're going to build on the good farming land.
This is firstly something of a death knell for organic farming: we know that that is more land hungry than conventional farming.
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Opponents have said the plan would destroy valuable farming land and increase pollution and traffic.
Bank balances apart, Colombia's mobsters have huge holdings of urban property, and of good farming land.
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Sekem, an Egyptian food producer, set itself the task of reclaiming desert land through organic farming.
But the river system that covers two-thirds of Australia's irrigated farming land is also suffering from decades of overuse.
That being said, differences in land use and farming practices since the Dust Bowl make the comparison of real-world impacts more complicated.
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Essentially, do we farm extensively, using fewer inputs and more land, thus allowing some wildlife to co-exist on the same land as our farming?
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He took timid steps to turn over more land to private farming, and gave more leeway to some small businesses, such as private taxi drivers.
"There are well-publicised grain shortages in France and America and this is some of the best farming land not only in the county, but the country, " he said.
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Without some consolidation of land, Chinese farming cannot be efficient.
Authorities say the land in question is owned by the government, but activists argue villagers have been farming the land for many years and have nowhere else to go if it is developed by a private company.
The presence of nitrate in the water is predominantly a consequence of land management decisions and farming practice.
In Zimbabwe, the problems have been exacerbated by the government's seizure of land from the commercial farming sector.
They cut the amount of land you need for farming, which reduces deforestation.
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Greenhouse gases are not the only climatically active ingredients that industry, farming and land clearance add to the atmosphere.
Higher yields, he pointed out, saved marginal land and forest from farming.
So far these have involved only modest steps, such as turning more state land over to individual farming and official recognition that foreign investors can pay higher wages.
But many of the huge landholdings are in the Amazon region, and much of their land is unsuited to farming of any kind, though in other places there is indeed scope for redistribution.
All those kids in inner cities and small farm towns, the rolling hills of Virginia, the valleys of Ohio, right here in Dubuque -- kids dreaming of becoming scientists or doctors, or engineers or entrepreneurs, following the family tradition of farming the land, maybe becoming a diplomat, maybe becoming a President -- (applause) -- starting a business -- they need champions in Washington, because they don't have lobbyists.
The Zimbabwe Government insists that only about 30% of white-owned land is actually used for farming.
And if more competitive farming pushed up land prices, it would boost the collateral held by overextended banks.
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