The polluting effects of energy matrix that humanity currently uses are huge, and big changes are needed to avoid irreparable damage to biosphere. Development of technologies and markets for clean renewable energy is urgent. This article analyzes how in first years of XXI century sources of vast natural availability, as energies of sun and wind, are becoming cost competitive and technologically mature. Describes how huge consumption of coal has caused a serious deterioration of global environment, especially acute in China, factor which coupled with its strong industrial policy, is turning this country into a technological and market leader on renewable energy, with an enhanced production capacity of clean energy systems that are spreading across planet, starting to become reality the beginning of end of fossil fuels.