After working all of his life as a sound technician for the Bulgarian state television, Emil is now retired. He lives in a 120 square meter house in Gorni Lozen, a village not far from Sofia, but only uses its ground floor and basement because he can’t afford to heat the whole of it.

"To achieve carbon neutrality by 2050 we need more investments than those envisaged by the Green Deal , otherwise we will never make it.

In architecture, there are two kinds of sustainability: one simpler, smaller, and ethical in its relationship with the environment and with people; and another which is “fashionable”, used as a label in a speculative way, without an understanding of what it really means.

Maguy Soldevila is a former art teacher. Some years ago, she quit the frenzy and the pollution of the French city of Lyon to move into a typical house of the 1960s, in the small village of Sail-sous-Couzan.

María Regidor co-owns a mini-hydro power plant in Spain, which produces part of the electricity provided to the residents of the Castile and León region.

Peer-to-peer (P2P) platforms allow energy sharing and trading within a community without the binding mediation of the traditional big utilities.

Wind and solar energy is not constant and therefore a renewables-based society requires smart grids to transport this power from areas where electricity generation is currently high to those where it is low in order to meet demand.