Diesel Jeans is known for its interesting advertising. They have pushed the envelope in many of their campaigns. In an interview Renzo Rosso, the creator of Diesel states:
there are dangers you risk in trying to always be innovative, and we are condemned to always do something new so it is easy to get to the point where nobody understands you anymore
Here are some advertisements from their recent (and somewhat controversial) global warming campaign. Click to view full size.