Earth with clouds above the African Continent – NASA – Unsplash What would you like to be remembered for? What legacy will you leave after perhaps 80 years living on this planet? There is one thing that we in the UK will each leave behind, on average, after 80 years of present-day-typical living, unless we choose to change. That is a few hundred kilowatts (kW) of ongoing heating per person, that will only be there because of what we did during our lives.