77 3 The authors Alina Averchenkova is the Co-head of Policy at the Grantham Research Institute on Climate Change and the Environment and the ESRC Centre for Climate Change Economics and Policy at the London School of Economics and Political Science. [...] The purpose of this policy paper is to assess the key factors affecting both the development and the implementation of climate policies in three key jurisdictions: the People’s Republic of China, the European Union and the United States. [...] This analysis of the trends in the development and implementation of climate policies illustrates the importance of understanding the diversity of economic, institutional and political factors at the national level, as well as their interplay with public and private interests and the media. [...] which holds the Presidency, controls the House and the Senate, and so on) are the key factors in the development and implementation of climate change policy in the US. [...] The Communist Party of China (CPC) – structure The CPC is organised around the following bodies: The Standing Committee of the Politburo sits at the top of the Party’s hierarchy, and is the most powerful policy- and decision-making entity.