Long-term solar activity and its implications to the heliosphere, geomagnetic activity, and the Earth’s climate - Preface to the Special Issue on Space ClimateKalevi Mursula, Periasamy Manoharan, Dibyendu Nandy, Eija Tanskanen and Pekka VerronenJ. Space Weather Space Clim., 3 (2013) A21DOI: https://doi.org/10.1051/swsc/2013043
