forc-db/GROA: Release with Cook-Patton et al. 2020, Nature.

First release of GROA, accompanying Cook-Patton et al., Nature

Cook-Patton, S.C., S.M. Leavitt, D. Gibbs, N.L. Harris, K. Lister, K.J. Anderson-Teixeira, R.D. Briggs, R.L. Chazdon, T.W. Crowther, P.W. Ellis, H.P. Griscom, V. Herrmann, K.D. Holl, R.A. Houghton, C. Larrosa, G. Lomax, R. Lucas, P. Madsen, Y. Malhi, A. Paquette, J.D. Parker, K. Paul, D. Routh, S. Roxburgh, S. Saatchi, J. van den Hoogen, W.S. Walker, C. E. Wheeler, S. A. Wood, L. Xu, & B. W. Griscom (2020) Mapping Potential Carbon Capture from Global Natural Forest Regrowth. Nature, in press.