[2][3] He served as Prime Minister Matti Vanhanen's Advisor on Climate Policy.

He is a founding member of Friends of the Earth Finland and has been its vice president in 1996–1997 and in the spring of 2004.

Tynkkynen has written articles in many newspapers and has been a reporter for YLE's radio news.

[3] Tynkkynen was the first openly gay Member of the Parliament of Finland,[1] but has since been joined by others, such as Jani Toivola and Silvia Modig.

In his free time he enjoys sports, reading, electronic music and travel.