I'm not familiar with conservatism in the Netherlands, but I don't think that is accurate description of conservatism in the US. A conservative sees inherent value in clean air, water, land for future generations and for preservation. They are often avid fishers, hunters, outdoorspersons, and want pristine environment both for future generations and it's own sake. They simply disagree on the best ways to go about preserving the environment, and often on the tactics used by liberals (including guilt discussed above) and the proper role of government in said preservation. They like clean water as much as the next person, but don't believe that a city council banning straws at their favorite restaurant is really relevant to that goal.