The problem with Rare earths is the mining is as toxic as the oil sands.
https://unpo.org/article/18120
As opposed to gold / silver mining which uses cyanide to extract the metals from the ore?
same with copper, nickel, cobalt and molybdenum
Do not drink the water in a gold mines tailing pond ..
and rare earth metals also required arsenic or cyanide to recover the metal
The oil sands uses steam or water to extract the bithumen.
Some diluent is added to help the flow of bithumen through the process, but this is recovered at the refinery and recycled
There are oil sand tailing ponds however these tend to have metals that were in the ore to begin with and the tailings are mostly cloudy water (dirt), which they need to keep out of the rivers
Operational water consumption has significantly and continuously declined
So which is more toxic again?
Cyanide / arsenic added or making some water cloudy with dirt
The problem here is the scale of the oil operations covers a large land area and from an Arial view it looks like shit
So some environuts like Gerald Butts see a photo of the operation and declare it needs to be shut down
Insitu oil sands injects the stam into the ground and then pumps the flowing bithumen out of the hole (I think CNQ Canadian Natural Resources now owns these operations)
A very small operational foot print
That however is irrelevant to Gerald . He still wants it stopped. I has the word oil in it.