Nature and EnvironmentGotthard Base Tunnel ready to openTo view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoNature and Environment07/09/2016July 9, 2016The Gotthard Base is the world's longest railway tunnel, running through the Swiss Alps. It's expected to have a huge impact on European freight transport – with significant environmental benefits.https://p.dw.com/p/1JKtyAdvertisement