The new UK government Department of Energy and Climate Change has announced how its work is to be divided. Overall strategy comes from cabinet minister Ed Miliband, with Mike O'Brien taking the central task of "delivering a low carbon economy and ensuring secure and affordable energy supply" as well as delivering the most recent Energy Bill. O'Brien's area of low-carbon supply is split between renewable energy, carbon capture & storage and "nuclear strategy and delivery, including radioactive waste and international non-proliferation." O'Brien also leads on energy markets and carbon budgets. The Climate Change Levy and climate change agreements come under Joan Ruddock, who is also responsible for delivering the Climate Change Bill.