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As conflicts in the Middle East and Ukraine continue to dominate the news, many Inside Science listeners have been in touch with the same question:

What is the carbon footprint of war?

How significant is the impact – and is it crass to even talk about it? We’re joined by Benjamin Neimark from Queen Mary University in London.

Also this week, we chat to the incoming DG of Europe’s particle-smashing facility Cern, what have we learnt by defrosting an extinct big cat and, the beetle that could ruin Christmas...

Presenter: Marnie Chesterton
Producers: Florian Bohr, Ella Hubber & Gerry Holt
Editor: Martin Smith
Production Co-ordinator: Jana Bennett-Holesworth 

If you want to test your climate change knowledge, head to bbc.co.uk search for ´óÏó´«Ã½ Inside Science and follow the links to The Open University to take the quiz.