21:29 Caroline Lucas (Brighton, Pavilion) (Green)

The decision that should be taken is one based on what would genuinely contribute most to the security of the British people. There is a real argument that says that by not replacing Trident we could improve national security and allow the Ministry of Defence to spend the more than £100 billion saved over the lifetime of any successor nuclear weapon system on an appropriate response to the real security threats and challenges of the 21st century. The 2010 national security strategy identified these as organised crime, cyber-warfare, pandemics and, of course, climate change. Scientists, former US Presidents and, indeed, former UK Prime Ministers, among others, have all agreed that climate change is in fact the greatest threat facing humankind, and every pound spent on Trident is a pound not spent on more appropriate responses to the real dangers linked to climate change.

If that is the case, let us explore how that money could have been better spent. The £80 billion to £100 billion price tag for Trident could have been spent on energy efficiency, energy conservation and renewable energy, all of which represent an investment in a positive future and the opportunity to be world leaders in an area of rapidly advancing technology, as opposed to a cold war past. Just £16 billion would insulate the 16 million homes in Britain that are currently uninsulated, saving 4% of UK carbon emissions and helping to prevent 20,000 annual cold-related deaths, and £30 billion would provide 3,500 offshore turbines, supplying 15% of UK electricity use. Crucially, positive investment in a greener future would make us more secure by reducing the impacts of climate change and ending our dependence on foreign oil—a key root cause of global terrorism.

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