I still bury oil in my backyard after doing oil changes, after all, it came out of the ground originally didn't it?? Even so, that is an improvement over pouring it down the storm drain like we used to do back when I was a kid.
Oh my god, say that again slowly? If your "logic" made any sense whatsoever..... the world is full of stories about the environmental damage caused by extracting crude oil. What on earth makes you "think" that toxic crude oil is somehow less toxic after it's been refined and used? Uranium comes out of the ground too... should we just dump the contents of every nuclear power station in a hole in your garden too?
FYI used engine oil is a known to be a cancer causing compound. FYI+ engine oil isn't "natural oil"... it's been tinkered with and it's full of man made chemicals which aren't found in nature.
As counterpoint to your overweening concern over things out of your control, I pour my waste ink out on the ground and recycle absolutely nothing. My efforts have exactly the same effect as yours, none whatsoever.
So you're a
sign maker as well as fully qualified Chemist and Biologist then? After dumping your liquid cr@p all over your garden you've followed up with an in depth scientific study which examines the impact of your efforts on the flora & fauna in your garden. You've taken soil samples and tested the local water supply to discover what impacts your dirty work have had on the environment. You know which chemical compounds are harmful and you understand how they bind and alter the nature of your environment.
After your extensive research you've passed your results onto the wider scientific community where your efforts are peer reviewed and it's confirmed that slopping toxic $hit all over your garden has no negative impacts on your environment... in direct contradiction of common sense and logic.
Either that or you've slopped your toxic slop in a hole and then covered it with an old plant pot and "seen" no visual deterioration in the environment you can "see" visually.
Next you have the lamp recycle freaks, then the anti mercury crowd. Anyone remember that Volcano that exploded in Iceland, you know, the one that had a name that couldn't be pronounced? Where most of Europe couldn't travel by air? That one explosion just but more mercury vapor into the atmosphere than if every man, women, and child broke all their CFL lamps on the ground, this generation, the last and future generations to come
Volcanic activity is a natural event which does release large volumes of chemicals... however, it has been proven that volcanic events can be beneficial to the planet and it's environment. The Icelandic event did not result in permanent or wide spread heath restrictions... the primary heath concern was the fine ash dust not the chemicals emitted.
Volcanoes emit lots of chemicals but they all share one characteristic... they are all chemicals which are natural to earth... they are chemicals which are built into the very fabric of the planet.
You cannot translate volcanic activity into the human sphere... we as humans have the capacity to invent chemical bindings which are unknown to nature. We understand how volcanoes work and understand the impact of combining the various natural chemicals which come out of them with those in the wider environment. Because man made chemicals are unnatural we have no way of knowing how each individual man made chemical will react when combined with other man made compounds or indeed with those which feature widely in nature.
Once man started creating his own chemicals this opened up a huge range of unknown consequences... how do you test that every chemical made by man will not cause a toxic result when combined with every chemical made by nature.
Mercury is extremely harmful to humans... it makes absolute sense to seek to find other safer alternatives. This has happened before with asbestos.... although asbestos is an excellent thermal insulator it is also an aggressive cancer causing substance... by banning asbestos the regulators forced scientists and industry to come up with safer alternatives.
I suggest you all take a look at the iconic Earth photograph taken from orbit... when viewed from the extra terrestrial our planet can be seen as a beautiful and delicate diamond amongst a solar system of rocks.
This planet is home, if we screw this planet there is no life boat, no plan B.