On the Vulgamore farm near Scott City, Kan., each combine can harvest up to 25 acres of wheat an hour—as well as real-time data on crop yields. Most of the food Americans eat is now produced on such large-scale, mechanized farms, which grow row after row of a single crop, allowing farmers to cover more ground with less labor.
With the world’s population exploding, we’ll have many more mouths to feed in the near future. But agriculture already uses up tons of resources and land. So how can we grow more food and how can we limit its damage to the environment?
The U.S. Department of Agriculture wants to greenlight a proposal that would allow imports of fresh beef from certain sections of Brazil, despite the South American country’s history of outbreaks of foot-and-mouth disease, a highly contagious pathogen that cripples cattle.
Should they or shouldn't they? That's the question Brazilians are asking themselves after Edward Snowden's "open letter" lauding Brazil's role in protecting privacy rights and alluding to his hand in uncovering spying on their president.
The use of social media is exploding in Brazil. It's the third largest market for Facebook and the fifth largest for Twitter.
The controversial women-only app Lulu recently launched here and quickly became the top downloaded app in the country, making Brazil Lulu's biggest market.
"I think it is cool because it's a social network for what all women throughout history have always done — talk about the guys we like, the guys we think are handsome," says 20-year-old Marcela, as she taps away at the Lulu app on her iPhone.