On 21st October 2013 Barry made a speech in the House of Commons highlighting the need to recognise the economic value of Natural Capital assets in order to protect the natural environment and enhance the benefits offered for our future economic growth.
"Every society is defined by two things: what it creates and what it refuses to destroy. The only thing that sets us apart from our natural environment is our ability to reflect on our own place within it, but for all our cleverness we remain dependent on the extraordinary bounty that nature provides. The food and water that sustain us, the air that we breathe, the raw materials that we use as fuel and clothing or to construct our homes are only the most obvious of nature's benefits. Equally important are the processes and services that purify our water, break down our waste, pollinate our crops and provide us with recreation and aesthetic or spiritual fulfilment. We have the right to use and enjoy the benefits of that natural capital, but that right gives us no licence to prevent our children from exercising a similar and equal use and enjoyment in the future.