GUADALIX DE LA SIERRA, Spain
Echevarria, founder of the building company specialised in all-wood, low-emission homes100x100 Madera,...
Ander Echevarria, founder of the building company specialised in all-wood, low-emission homes 100x100 Madera, points out on a screen on an iPad, as he checks the air quality in his house with an application, in Guadalix de la Sierra, Spain, November 27, 2020. Picture taken November 27, 2020. REUTERS/Sergio Perez