Europe is bracing itself for an energy emergency, amid increasing fears the Kremlin could stop vital gas supply as a tool in its war. 

Germany gets a large proportion of its natural gas from Russia, but the Nord Stream pipeline that provides it has been switched off, and there's growing concern Vladimir Putin won't put it on again. 

Today, energy analyst Tom Marzec-Manser on how that could send not only Germany but the whole of Europe into recession, and mean we would be left paying more too.

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Tom Marzec-Manser, head of gas analytics, Independent Commodity Intelligence Services, London