1. Dept of Physics, Univ. of California, Berkeley Berkeley CA USA
2. GEES (School of Geography, Earth and Environmental Sciences) and Birmingham Inst. of Forest Research, Univ. of Birmingham Birmingham UK
3. cE3c – Centre for Ecology, Evolution and Environmental Changes/Azorean Biodiversity Group/CHANGE – Global Change and Sustainability Inst. and Univ. dos Açores (FCAA) Angra do Heroísmo Açores Portugal
4. Energy and Resources Group, Univ. of California, Berkeley Berkeley CA USA