Thomas A. Heberlein argues that conservation efforts should focus on changing behaviors rather than attitudes. He advocates using "structural fixes" that change social norms and environments to influence behavior, rather than relying on "cognitive fixes" that aim to change attitudes through increasing knowledge. Norms are powerful because they are specific, observable behaviors that people follow to feel positively regarded by others. While attitudes are resistant to change and take direct experience to shift, behaviors can be influenced by altering social norms without changing underlying attitudes.