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lunatica

(53,410 posts)

8. there are 7.68 billion acres of arable land

Reply to Buzz Clik (Reply #6)

Sat Apr 27, 2013, 01:41 PM

Apr 2013

the Earth only has 57 million square miles of land (that's 36.48 billion acres; there are 640 acres per square mile).
However, there are only 12 million square miles (7.68 billion acres) of arable land.

http://one-simple-idea.com/Environment1.htm

And people could build these in non-arable land too. But you could have looked it up without much problem too but maybe it's more important to try to stump me.

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I don't have an answer� [View all] MrScorpio Apr 2013 OP

Offhand, I'd say... Cirque du So-What Apr 2013 #1

Sadly KentuckyWoman Apr 2013 #2

Because some idiots probably sold the manufacturing eqipment to the Chinese DJ13 Apr 2013 #3

And we're not building these either. Why not? lunatica Apr 2013 #4

"release billions of acres of land back to Nature" Buzz Clik Apr 2013 #6

there are 7.68 billion acres of arable land lunatica Apr 2013 #8

Okay. Just wanted to make sure I understood correctly. Buzz Clik Apr 2013 #9

No. It's not. lunatica Apr 2013 #10

What a wonderful project haikugal Apr 2013 #11

Up until quite recently, solar panels generated less energy than it took to construct them. Buzz Clik Apr 2013 #5

Arizona State Univ is covered with panels rufus dog Apr 2013 #7