Hot Heart is an award-winning heating system, known as ‘the Helsinki Model’. Renewable energy – biomass, water, solar and wind power – is stored in thermal basins on a series of ‘islands’. Seawater pumps then direct the heat to the city. By 2030, Finland’s capital will have a zero carbon footprint.

The ‘islands’ will also be an eco-destination and an educational attraction with tropical forests.

An international team invented this model and they hope to recreate it on a global scale. You can watch their video at:

Helsinki Hot Hearth Cool City