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Tech investors see opportunities in the shift to eco-friendlier farming
Lab-based producers think they can make $70bn industry more sustainable — if regulators will let them
But advances in technology and automation could make vertical farming more viable in years ahead
New crop varieties and a turn to the Middle East could give the sector new impetus
Investors are pouring money into start-ups that want to build a greener economy
Entrepreneurs say lab-grown milk is greener — but consumers and farmers may take some persuading
Smart data and economies of scale could help shrink a big carbon footprint
International Edition