I think you’re confusing ‘harmful’ and ‘malicious’. Maliciousness entails knowledge. Harmfulness can be unknowing.

And as for crimes, they’re a jurisdiction-dependent notion. Let’s not play so fast & easy with terminology as to make it meaningless.

Wait until you find out about what happens with disused oil wells.

Because it may come off as biased and retaliatory? Consider all the persistent pollution from many other nations much worse than this that no one does a thing about.