março 08, 2008

População mundial a perspectiva assustadora...

By 2050 or so, the world population is expected to reach nine billion, essentially adding two Chinas to the number of people alive today. Those billions will be seeking food, water and other resources on a planet where, scientists say, humans are already shaping climate and the web of life.

Current World Population: 6.4billion

It has doubled in the past 40 years, is increasing by over 140 people every minute ... equivalent to another Los Angeles plus another Chicago every month.

Right now, with "only" 6.4 billion of us: (1) We are driving over 50 species of plants and animals to extinction per day! (2) We are destroying rain forests many times faster than they can regenerate. (3) We are consuming stored solar energy (fossil fuels) at rates thousands of times faster than it is regenerating. (4) There are regions in the U.S. where we are consuming fresh water at least 10 times faster than it is being replenished. (5) We are causing soil salinization and erosion several-fold faster than rates of restoration. (6) We are over-fishing our oceans, radically changing the species balance in many places.
For several years population has been increasing faster than many vital non-renewable and renewable resources.
This means the amount of these resources per person is declining, in spite of modern technology.

As Dimensões Populacionais estimadas para a India e China são avassaladoras...

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