Claussen,
M.
Potsdam Institute for Climate Impact Research and Cooperation Partners;
Mackay,
A.
Potsdam Institute for Climate Impact Research and Cooperation Partners;
Battarbee,
R.
Potsdam Institute for Climate Impact Research and Cooperation Partners;
Birks,
J.
Potsdam Institute for Climate Impact Research and Cooperation Partners;
Oldfield,
F.
Potsdam Institute for Climate Impact Research and Cooperation Partners;
