The implication is that somehow wind farms pollute just as much as coal-fired power plants.
But that’s not what the article says. Basically it says that over the next X years, enough wind farms won’t be built to counteract all the pollution that’s belching out of coal-fired power plants.
How is this an argument against wind farms? If we didn’t build wind farms, wouldn’t we have to build more coal-fired power plants? And wouldn’t this increase pollution?