Food ark

National Geographic: Food Ark A crisis is looming: To feed our growing population, we’ll need to double food production. Yet crop yields aren’t increasing fast enough, and climate change and new diseases threaten the limited varieties we’ve come to depend on for food. Luckily we still have the seeds and breeds to ensure our future food supply—but we must take steps to save them. Six miles outside the town of Decorah, Iowa, an 890-acre stretch of rolling fields and woods called Heritage Farm is letting its crops go......

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