In the 1930s, the dominant view was the conservationism of Theodore Roosevelt, endorsed by Democrat [[Franklin D. Roosevelt]], that led to the building of many large-scale dams and water projects, as well as the expansion of the National Forest System to buy out sub-marginal farms. | In the 1930s, the dominant view was the conservationism of Theodore Roosevelt, endorsed by Democrat [[Franklin D. Roosevelt]], that led to the building of many large-scale dams and water projects, as well as the expansion of the National Forest System to buy out sub-marginal farms. |