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ADVERSE EFFECTS
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AGRICULTURAL OUTPUT
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AGRICULTURAL PRACTICES
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AGRICULTURAL PRODUCTION
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AGRICULTURAL PRODUCTIVITY
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AGRICULTURAL RESOURCES
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AGRICULTURAL SYSTEMS
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AGRICULTURE
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ALTITUDE
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ATMOSPHERE
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ATMOSPHERIC CARBON DIOXIDE
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CARBON
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CLIMATE CHANGE RESEARCH
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CLIMATE SENSITIVITY
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CLIMATE VARIABILITY
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CLIMATE VARIABLES
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CLIMATE ZONES
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