Changes in timing of seasonal peak photosynthetic activity in northern ecosystems by Park, T, Chen, C, Macias-Fauria, M, Tømmervik, H, Choi, S, Winkler, A, Bhatt, US, Walker, DA, Piao, S, Brovkin, V, Nemani, RR, Myneni, RB

Complexity revealed in the greening of the Arctic by Myers-Smith, IH, Kerby, JT, Phoenix, GK, Bjerke, JW, Epstein, HE, Assmann, JJ, John, C, Andreu-Hayles, L, Angers-Blondin, S, Beck, PSA, Berner, LT, Bhatt, US, Bjorkman, AD, Blok, D, Bryn, A, Christiansen, CT, Cornelissen, JHC, Cunliffe, AM, Elmendorf, SC, Forbes, BC, Goetz, SJ, Hollister, RD, de Jong, R, Loranty, MM, Macias-Fauria, M, Maseyk, K, Normand, S, Olofsson, J, Parker, TC, Parmentier, F-JW, Post, E, Schaepman-Strub, G, Stordal, F, Sullivan, PF, Thomas, HJD, Tømmervik, H, Treharne, R, Tweedie, CE, Walker, DA, Wilmking, M, Wipf, S