When the United States of America became embroiled in the conflict of the second World War, the economic situation in the country was still pretty strained. In order to rally the American public around the war effort and inspire the conservation of resources, the government designed this hilariously awesome poster propaganda.Six decades later, the message could quite easily be applied to our equally pressing challenge to combat climate change. Treehugger has a great round-up of these posters. Do they inspire you?