In order to address the externalities caused by pollution, which policies could be used? Regulation on the amount of pollution that can be emitted/created O Subsidies, Taxes, and/or Regulation O Subsidies and/or Taxes Taxes on the creation of pollution Subsidies for firms and activities that produce pollution Subsidies and/or Regulation Taxes and/or Regulation Nothing should be done - the market will arrive at a socially efficient amount of pollution on its own