Here are the climate-related sections of speeches by MPs during the Commons debate Progress on EU Negotiations.
Full text: https://hansard.parliament.uk/Commons/2018-11-22/debates/18112234000001/ProgressonEUNegotiations
15:54 Sir Nicholas Soames (Mid Sussex) (Con)
May I welcome this political declaration, particularly paragraph 77 on the global co-operation enshrined in this agreement? Does the Prime Minister agree that we must continue to work more closely than ever with our European partners, even when we leave the European Union, on trans-border issues such as climate change, trade protectionism and all the other issues that we have to deal with together and cannot deal with singly?
[Source]
15:55 The Prime Minister
My right hon. Friend is absolutely right. That is why it is important that we have that section in this political declaration. We are leaving the European Union; we are not leaving Europe. It will make sense for us to continue to co-operate with our European partners on a whole range of issues that affect the whole world and on which our being able to work together will be important in terms of how we can address those issues and resolve them—as he suggests, that includes issues such as climate change.
[Source]