"Other countries, especially the BRICS and BRICS-associates (BRICSA), may soon follow suit and join forces with Russia, abandoning the `petrodollar' as trading unit for oil and gas. This could amount to tens of trillions in loss for demand of petrodollars per year"

To put it bluntly: I don't think this true.

BRICS has not been so far a functional cooperation.

>China recently "opened two centers to process yuan-denominated trade flows, one in London and one in Frankfurt."<

I hope he is talking about London (India) and Frankfurt (Brasil) - otherwise...