In Possible solar origin of the 1,470 - year glacial climate cycle demonstrated in a coupled model, Holger Braun, Marcus Christl, Stefan Rahmstorf, Andrey Ganopolski, Augusto Mangini, Claudia Kubatzki, Kurt Roth & Bernd Kromer postulated that the combination of the 210 year DeVries — Suess and the 87 year Gleissberg cycle could tip nonlinear fresh water influxes and subsequent changes in Thermohaline Circulation triggering Dansgaard - Oeschger events. (realclimate.org)
while scientists Douglass and Knox (2014) identify the source of modern deep ocean temperature forcing that has an «unquestionably solar origin» manifested by El Niño / La Niña phenomena. (notrickszone.com)
``... even under the extreme assumption that the Sun was responsible for all the global warming prior to 1970, at the most 30 % of the strong warming since then can be of solar origin.» (realclimate.org)