 Global investment in clean energy reached $260 billion in 2011; however, the International Energy Agency (IEA) estimated that $5 trillion is needed by 2020 to avoid a dangerous rise in greenhouse gases.The CEM's low-cost, high-impact year-round initiatives deliver tangible results and enable proven policies, programs, and technologies to realize broader, faster, and lower-cost diffusion and replication among CEM and non-CEM countries.The CEM initiatives are focused on improving energy efficiency worldwide, enhancing clean energy supply, and expanding clean energy access.