Designed and published in 1984, these classic posters were created as a project of Kettler Ecological Design to promote and popularize renewable energy. These natural energy sources have gone largely untapped over this time span. However, suddenly, 20 years later, there is fresh and renewed interest in renewable energy. Increasing populations and rising standards of living are creating huge demands for energy, fuels, and electricity. Political instability threatens a reliable supply of petroleum to an oil-thirsty world. People and policy makers are finally seeing that regardless of the role of fossil and nuclear fuels in the future, renewable energies will and must be utilized on a much greater scale across the globe.

The poster images are 20 x 30 inches on 24 x 36 inch high quality paper, giving the images a 2 inch white border. Each poster has small text at the bottom describing the past, present, and future of each energy type. Printed in bright, bold colors, they make a dramatic statement about the power generated daily by the earth and sun. Attractive and educational for home, office, or schools.