But a new Harris interactive poll found Republicans are actually doing more to be energy efficient.
64% of Mitt Romney supporters reported making "green" improvements to their homes over the last five years.
That's compared to the 58-percent of President Barack Obama supporters.
A desire to save money was the motivating factor for both sides.
85% of respondents said lower energy costs convinced them to go green.
Concern for the environment was the least mentioned factor.