Here are the climate-related sections of speeches by MPs during the Commons debate Nuclear Deterrent.
Full text: https://hansard.parliament.uk/Commons/2013-01-17/debates/13011761000005/NuclearDeterrent
15:15 Dame Joan Ruddock (Lewisham, Deptford) (Lab)
In the world we now inhabit the greatest threats to the UK are climate change, international terrorism, cyber attack, global economics, health epidemics and competition for scarce resources. It is received wisdom that every one of these challenges can be addressed only by international co-operation, the building of trust, diplomacy, peacemaking and development. In all these fields the UK under successive Governments has made a positive contribution.
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16:51 Caroline Lucas (Brighton, Pavilion) (Green)
The greatest security threats that we face today are related to climate change and international terrorism. Those are things that nuclear weapons cannot help us with; rather, they deter and take resources away from addressing those issues.
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