In good news for environmentalist and air passengers alike, the world’s greenest airport extension opens at Norway’s Oslo airport this month, designed by local practice Nordic – Office of Architecture. The design, which uses snow as a coolant, has achieved the world’s first BREEAM ‘Excellent’ sustainability rating for an airport building, at the same time as making it more spacious, efficient and comfortable for passengers. The architects have created a departures hall that is airy and light, with green walls and water features inspired by Scandinavian forests, and reduced the walking distance from check-in to airplane to a maximum 450m. A combination of glulam roof beams and sustainable technologies deliver Passive House level energy performance standards. Nordic is also on site with Istanbul New Airport, which will be the largest in the world when finished next year.