What is a “sustainable product”? Is it more sustainable to continue using my old washing machine or to buy a new, more energy efficient one? Are single use products always unsustainable? What criteria should I use to judge whether a product is sustainable or not? What measures can we take to promote sustainability in products?
Geothermal energy for electric power production has a low profile yet is significant in the current and potential energy mix for a number of countries. It has also been described as the most reliable of the renewable energy sources, above weather-dependent wind, solar and hydropower.
Should we be worried about there being enough nickel to supply the transition to electric vehicles and cleaner energy sources? Given its wide range of uses in important existing and emerging technologies, this is a frequently asked question.