A convergence among estimates of a large North American carbon sink: linkages across bottom-up, top-down and sideways data sets

Daniel J Hayes, University of Maine, School of Forest Resources, Orono, ME, United States, Rodrigo Vargas, University of Delaware, Newark, DE, United States, David E Butman, Yale University, Hamden, CT, United States, Andrew R Jacobson, NOAA Boulder, Boulder, CO, United States and Richard Birdsey, Woods Hole Research Center, Woods Hole, United States