On 5 June, I marked world environment day by visiting the Thames barrier, an important defence and an iconic part of London’s landscape. When designed, it was expected to close once or twice a year, but has closed 61 times in the last five years alone, clearly demonstrating the impact of climate change. We are determined to protect and enhance our natural environment for everyone and pass it on to future generations. That is why my Department is leading the cross-Government work to push for a strong global deal in Paris, and ensure that we are the greenest Government ever.
I thank the Secretary of State for that answer and welcome her to her post, to which I know she will bring great expertise and passion. It is especially pleasing to have a Conservative Secretary of State for this Department—for the first time in 18 years. Which Departments has my right hon. Friend had discussions with and why are the discussions important?
My hon. Friend is of course right. Cross-governmental work is incredibly important for delivering our ambitious targets. It is already happening, including between my Department and the Department for Transport through a joint unit on ultra-low emissions vehicles. There is also DECC-Department for Communities and Local Government collaboration on energy efficiency in homes, and DECC-Department for Business, Innovation and Skills collaboration on helping businesses to save money on their energy costs by cutting their energy use. Government policies have contributed to an overall 22% decline in energy intensity since 2004—more than for most comparable economies.