The "growth" model of economics has not worked. See an explanation from the Center for Advancement of the Steady State Economy at their website.
"There is a fundamental conflict between economic growth and environmental protection, including conservation of biodiversity, clean air and water, and atmospheric stability. This conflict is due to natural laws (thermodynamics and ecological structures) - it is simply a result of the way the world works. Mounting evidence of this conflict demonstrates the limits to growth."
An increasing number of economists and ecologists support this position. Go to the website linked above to get more information.