Crops play a major role in the annual CO2 cycle increase

Crops play a major role in the annual CO2 cycle increase
Madison WI (SPX) Nov 20, 2014 - Each year, the planet balances its budget. The carbon dioxide absorbed by plants in the spring and summer as they convert solar energy into food is released back to the atmosphere in autumn and winter. Levels of the greenhouse gas fall, only to rise again. But the budget has gotten bigger. Over the last five decades, the magnitude of this rise and fall has grown nearly 50 percent in the No ... more

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