It is generally argued that representative democracies are unresponsive to the needs of future generations. Representatives, standing for re-election, are incentivized by the needs of current generations, and fail to take the interests of the unborn into account. However, this argument bypasses the institutional diversity among parliaments. In this article, we focus in particular on bicameralism, and we ask whether the representation of future generations is more prevalent in upper than in lower houses. We expect that posterity’s interests will be taken into account more strongly in upper houses which are (1) mandated to reflect on the long-term impact of policies, (2) less politically and publicly visible and (3) at least partially composed of non-elected members. Based on an exploratory analysis of representative claims made on behalf of future generations in the Belgian Chamber of Representatives and the Senate, we conclude that the institutional status of the parliamentary assembly is not related to the ...