1 Day Ago
You raise good points. Re oil spills, it reminds me of the Deepwater Horizon blowout- you have an underwater camera filming a ridiculous amount of oil shooting out of the destroyed well on the ocean floor for days on end, it looks rather apocalyptic. But then you think that in the course of earth history certainly there must have been many spontaneous eruptions of oil from the ocean floor and yet the oceans don't show obvious signs of such damage.
Having said that, oiled salt water in the vast ocean arguably is less of a problem than fresh water in an aquifer getting contaminated by a spill. You mention cleaning up spills on dry land, I gotta believe cleaning up a spill into drinking water is far more harmful and difficult to remedy.
And from what I've read, tar sands oil is arguably better left untouched because it is so energy intensive to mine and process and its environmental impact is so large.
Yeah, duh, we need energy to run machines but we also need wisdom re which energy sources to use and how much money and effort to put into developing sources which have less damaging effects on the environment.