As long as those investors are a moderate fringe, rather
than the core of investors, they become the
source of profits for
others, but there is no particular danger to market
efficiency.
I doubt that politicians truely understand the problem at hand, it is not as if we have a new energy technology ready to fill in for fossil fusl at the present time and whilst I am sure
than energy
efficiency can reduce carbon emissions by around 25 % it will be left to the markets to decide this and that means awaiting the onset of peak fossil fuels to push up the price of it that will make
other energy
sources more viable.