7 Billion – How Did We Get So Big So Fast
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[7 Billion – How Did We Get So Big So Fast]
[7 Billion – How Did We Get So Big So Fast – Commentator] Source: LYBIO.net
A thousand years ago there was only 1/3 of a billion people. But we were multiplying. Now there is 7 billion of us. How did we grow so much so fast. Say this glass is North America, the fuller the glass gets (population size) the more people there are. Water drips in as people are born (births). Water drips out as people die (deaths). Okay, here’s the entire world.
Now let’s go back a thousand years. The America’s are nearly empty. (North America) (Latin America). Europe and Africa have less than 100 million people between them. And just like today, most people live in China, India, and the rest of Asia. For centuries things stay pretty much the same. (1220 CE 0.3 Billion)
Births are cancelled out by deaths.
Women are having lots of babies (lots of births) but most babies die (lots of deaths) before they grow up and have families of their own.
We don’t reach 1 Billion until 1804 CE.
But things are changing, better medicine and better agriculture are are starting to slow the leak from the bottom of the glass. Source: LYBIO.net
People still die of course. (Fewer deaths)
But more babies grow up ( … but still, lots of births ) and have babies of their own. Lots of babies.
We’ve grown from 1 billion to 7 billion (2011) And it only took 200 years. Will we keep going like this? Probably not! The UN says we’ll level out at 10 billion by the end of the century. So as we continue to grow from 7 Billion, the question is? Can the world hold that many people? Experts can’t agree. It all depends on how well we manage our food, water and energy.
Produced by Adam Cole
Cinematography by Maggie Starbard
7 Billion – How Did We Get So Big So Fast. Women are having lots of babies (lots of births). Complete Full Transcript, Dialogue, Remarks, Saying, Quotes, Words And Text.