Data Science vs Putin: How much does each of us pay for Putin's war?

Putin's Ukraine war has caused gas prices to skyrocket. Because of Europe's dependence on Russian gas supplies, we all pay significantly more for heating, involuntarily helping to fund Russia's war against Ukraine. Based on an analysis of real-time gas price data, we present a calculation that estimates every household's financial contribution for heating paid to Russian gas suppliers daily at current prices - six euros per household and day. We show ways everyone can save energy and help reduce the dependency on Russian gas supply.