142M471B3J 1 Carbon Dioxide 1 Congress 1 Earth system model 1 Research Support, Non-U.S. Gov't 1 Research Support, U.S. Gov't, Non-P.H.S. 1 climate change 1 mehr ... data assimilation 1 elevated CO2 1 global change manipulation 1 global warming 1 nitrogen deposition 1 terrestrial feedbacks 1 weniger ...