Con la due insegnanti abbiamo visto questo filamato:(clicca qui sotto)
http://video.nationalgeographic.com/video/the-magazine/the-magazine-latest/ngm-7billion/
e poi abbiamo verificato la nostra comprensione delle informazioni forniteci
WE ARE 7 BILLION
7 billion
is a big number
By the end of
2011 you will be 1 of 7 billion people living on earth.
It would take
200 years just to count to 7 billion out loud.
7 billion
steps would take you around the globe 133 times.
In 1800 the
world’s population was 1 billion
130 years
later …. in 1930 …. 2 billion
….
1960 3 billion
….
1974 4 billion
….
1987 5 billion
….
1999 6 billion
….
2011 7 billion
…. 8 billion
In 2045 it
could be 9 billion
About every
second 5 people are born, 2 people die.
In the time
you’ve watched this video,
Our
population has increased by 162 people…163 164
165 166 167
168 169 170!
And nearly
everywhere we’re living longer.
In 2010 the
average person lived 69 years,
In 1960 the
average person lived 53 years,
In 2008, for
the first time ever, more of us lived in cities than in rural areas.
MEGACITY=
population >10 million
Mexico city Tokyo New York city
… in 1975
there were 3 megacities
Right now there are 21 megacities!
By 2050, 70%
of us will be living in urban areas but…..
But we don’t
take up as much space as you’d think.
Standing
shoulder to shoulder all 7 billion of us would fill the city of Los Angeles.
So it’s not
space we need…it’s balance!
5% of us
consume 23% of world’s energy,
13% of us
don’t have clean drinking water,
38% of us
lack adequate sanitation.
7 billion
people speaking more than 7.000 languages living in 194 countries
7 billion reasons to think about 7 billion!
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