text: The Commission will further promote tax systems and pricing that reflect environmental 
  costs, including biodiversity loss. This should encourage changes in national fiscal 
  systems to shift the tax burden from labour to pollution, under-priced resources, and 
  other environmental externalities. The ‘**user pays’ and ‘polluter pays’ principles**have 
  to be applied to prevent and correct environmental degradation. 
  
  Public authorities’ purchasing power represents 14% of EU GDP and can serve as a 
  powerful driver of demand for the products and services of companies that invest in or 
  contribute to nature-based solutions. To tap into this potential, when proposing further 