Aidan Regan: If we’re serious about supporting Ukraine, and saving the planet, we should immediately ban all Russian fossil-fuel imports

Putin’s war depends on the money that Russia earns supplying gas, coal and oil to Europe. We need a radical EU-wide plan to switch immediately to renewables

The future: ‘Our addiction to fossil fuels has to end. Politicians need to start being honest with voters and consumers about what this means and what it is going to cost’