Go for it, a nice shaded area would help me immensely. I do, however hope you've done a ground analysis, because if it falls on my house you're building me another. That's how it works. If it's no longer on just your property, it becomes my problem too.

Edit to add: Besides, in cases where there's clearly been damage to another person and/or their property, that in itself is at the minimum a civil case.

One could even argue that environmental concerns could also be a civil problem, as one person's poisonous fumes could easily cross into another person's property and damage their person or effects.

All these so called environmental laws do is make it legal for any amount under a set limit. Regardless of any damage to people or property it causes. It's a legal amount after all!