"Solar Manifesto" by Hermann Scheer, in Germany, claims all energy on Earth can be derived, for every country, from solar energy and water, and so on.
德国赫曼 施齐尔的“太阳的宣言”一书 宣称全世界所有国家需要的能源， 都能从太阳能和水能等等能源中获得。