Few of them predict a double-dip recession.

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But farmers are already struggling just to keep up with the spiking global demand for meat, which experts predict could nearly double by 2050.

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In the UK, experts predict obesity levels will nearly double in the next 20 years.

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Even so, only about half of Brazil's 100 million pets have access to pre-packaged foods and pet stores, according PET South America, leaving plenty of room for future growth, which they predict will be in the double digits.

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Many executives predict their balance-sheets will double every five years or so.

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"We're not trying to predict which markets will all of a sudden have double-digit growth in home prices again, " says Wizner.

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