Sigmar Gabriel (born September 12, 1959 in Goslar) is a German politician currently chairing the Social Democratic Party of Germany (SPD).
On December 15, 1999, after the resignation of Gerhard Glogowski, who had succeeded Gerhard Schröder in office, Gabriel became Minister-President of Lower Saxony and served until March 4, 2003. After being voted out of office, he became the SPD's "Representative for Pop Culture and Pop Discourse" from 2003 to 2005, for which he was bestowed the nickname Siggi Pop. From 2005 to 2009 he was the Federal Minister for the Environment, Nature Conservation and Nuclear Safety in the cabinet of Angela Merkel.
He has promoted the International Renewable Energy Agency. He is opposed to hate speech labeling Thilo Sarrazin's speeches "verbal violence."