Today, more than ever before, climate and environmental policy are at the heart of the European Union's activities, and the EU taxonomy for sustainable financing is only one of the newer instruments with which the EU tries to influence the "greening" of investments and increase the sustainability and neutrality of economic activities of its Member States. The aim of this MA thesis is to investigate the decision-making processes in the EU and their politicization, which is why this research raises two questions. The first question is: in which ways does the politicization of technical issues in European public policies take place, drawing on the example of the EU taxonomy’s decision-making process? The second question is: how does the European Commission deal with this politicization in order to successfully adopt delegated acts? The paper attempts to answer these questions by conducting a thematic analysis and content analysis of newspaper articles published on relevant online newspaper platforms. In addition to the above, the paper attempts to clarify how delegated acts are adopted, how decisions in the field of climate policy become politicized, and what is the connection between politicization and the concept of the "political Commission". The analysis indicated that the Taxonomy, i.e., its Complementary Climate Delegated Act, was truly politicized because it fulfilled three conditions: a) it was increasingly salient in the media; b) it led to a polarized discussion and c) to the mobilization of numerous actors. When it comes to the Commission's reaction to the politicization of the Taxonomy, three strategies were identified which the Commission used to mitigate and prevent politicization, namely: a) depoliticization; b) "dilution" of interests and c) prevention of forming large coalitions.