Nature soaks every evil with either fear or shame.
I don't want to get into the 'who's a hostage-taker' discussion here but what is the estate tax? It's a double tax on death. Economists will tell you that it's really not a tax that soaks the rich but it's a tax on capital that deprives business investment and therefore job creation.
Our livelihood is intimately tied to the food we eat water we drink and places where we recreate. That's why we have to promote responsibility and conservation when it comes to our natural resources.