By Ben Aris in Berlin Russian gas exports to Europe have tumbled since the Nord Stream 1&2 pipelines were blown up last September but EU imports of Russian LNG have jumped by 40% since the invasion of Ukraine and are currently at record levels, according to a report by Global Witness. Europe remains Russia’s biggest customer for gas – both piped and as LNG – as the EU countries continued to spend $1bn a month on Russian Arctic LNG in 2023. Russia is working very hard to make up what it lost from the collapse of piped gas by growing its LNG business, which remains unsanctioned – for now. “Betwe…