| http://www.w3.org/ns/prov#value | - ay:2008/05/04: ABC(Au): Farmers face climate challenge for more food2008/05/04: Yahoo: Farmers face climate challenge in quest for more foodIf farmers think they have a tough time producing enough rice, wheat and other grain crops, global warming is going to present a whole new world of challenges in the race to produce more food, s
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