Spain

Hot, Dry Madrid Aims For A Cooler, Greener Future

A huge, vertical garden covering the wall of Madrid's CaixaForum is both a work of art and something practical for the environment. It's among several steps the city has taken to fight climate change.

For Barcelona, Tourism Boom Comes At High Cost

Many complain their magnificent city is being ruined by tourism. Some 30 million visitors arrive every year, bringing much-needed revenue — but crowding out longtime residents and businesses.