An environmental education: how the education realignment polarized Congress on the environment

As the international community attempts to unite to combat climate change, American party politics could hardly be more divided on this issue. This paper offers an additional explanation for how US congressional politics on environmental policy has polarized: the ongoing education realignment in American party politics. As the Democratic Party increasingly relies on college-educated voters and the opposite is true for the Republican Party, this can affect the parties' positions on environmental policy based on public opinion research which finds a positive relationship between education and pro-environment attitudes. Using League of Conservation Voters legislative scorecards from 1983 to 2020, this paper finds the education realignment contributed to the removal of pro-environment Republicans and anti-environment Democrats in Congress in recent decades; and this primarily occurred through elite replacement rather than conversion.