The beauty of capitalism for an environmentalist or Friend of the Earth is that it rewards the most efficient use of resources.
The capitalist that gets the most bang for his buck from the resources he uses makes the more profit.
Ultimately forcing a producer say of coal fired electricity to sequester carbon dioxide will produce less electricity at a higher price and in the long run produce more waste.
Capitalist left to their own devices eventually will produce the most product while producing less waste, because it is in their own interest.
Today, the "Capitalists" don't even know what companies they have a stake in with the stock market....They dump stocks at the drop of a hat if the next quarters' earnings look bad. Nobody can afford to think long-term anymore, it's get what you can now, and dump the problems on some other sucker's lap.