Hint: If those technologies and developments were not heavily subsidized then Al's investment in those companies would not be worth diddly as they are not economically viable when compared to other non-subsidized alternatives. That is the very reason those industries are subsidized.
To put it another way, I could make a killing if I sold i386 machines for $2000 and the government gave people a $2500 tax credit to buy my stuff. Take away the $2500 tax credit and there is -0- value of owning a company making i386 computers. Al Gore owns many i386 companies who simply cannot compete with other alternatives without massive subsidies.
Even the crown jewel of the greenies, Tesla, wouldn't be alive today if it weren't for massive subsidies.