Tuesday, March 19, 2013

Ch 10 Blog Human Population Growth


Ch 10 Blog

Human Population Growth

The Earth's population has increased dramatically over the past century. In 1804, there were an estimated one billion people on the planet. By 1927, that number had doubled, and it doubled again in 1974. At that rate of growth, the Census Bureau estimates, the world population could reach 9.4 billion by the year 2050.
China is the world's most populous nation with about 1.32 billion men, women and children - about 20% of world population. The second largest is India, with 1.12 billion - about 17 percent of all people on Earth. India is followed by the United States, with 300 million and Indonesia, with 225 million people. Together, these four nations contain nearly half of the world's human population.
There's an obvious link between the number of people and the amount of pressure we are putting on the environment. More people require more resources to survive. That means more potential for polluting the planet's air, soil and water.
That's where we all come in. Saving the environment will require everyone's best efforts - not just those of politicians, scientists, grownups or kids acting alone.- by David George Gordon 

Check out this National Geographic Video that explains the graph belowhttp://www.youtube.com/watch?v=sc4HxPxNrZ0 


What's Your Plan? How are you going to be a part of the solution to environmental woes? 

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