Nature and EnvironmentBarcelona cools downTo view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoNature and Environment09/18/2020September 18, 2020Cities all over the world are getting hotter. The city of Barcelona wants to combat the heat with the help of rooftop gardens and new green spaces. https://p.dw.com/p/3L4E2Advertisement