The private market is today a platform for political activity. Political consumption means that political values is the underlying aspect of which product a consumer select. Almost 50 percent of the swedish people is a political consumer but today even the public sector use the market as a political platform. Green public procurement (GPP) is a market orientated political tool for a greener world and sustainable development. All over the world, especially within the European Union, politicians have a lot of belief in GPP, but research show that the results from how public actors use these tools today is ineffective.

   This is a qualitative case study with the explicit aim to get a deeper understanding in what factors affect the implementation of environmental demands in public procurement in Karlstads municipality regarding the market for constructions. The study is based on interviews with respondents who work with procurement of constructions. The analysis has been done in systematized qualitative fashion.

   The interviews show that the factors that have the greatest effect is economics which consists of competing goals and interests, but it also shows that there is a poor understanding how environmental requirements has to be written in order to not break the law. The conclusion is that the implementation of environmental demands in public procurement of construction y is based on the opinion that the environment is an important  value. This leads to clear decisions that ensure that the environment is a part of the procurement and that resources like money and time deposits for the environmental demands. In the final stage,  national law, the range and attitude on the construction market effect the procurement.