Campaigners want us to take fewer flights, but ditching the plane for a train is easier said than done. For families planning a summer holiday, just how practical and cost-effective is it to shun air travel? THE GUARDIAN
Read MoreOne in five travellers is flying less as "flight shaming" propels travellers to shun air travel for the sake of the planet, according to a survey of 6,000 Western travellers. THOMSON REUTERS FOUNDATION
Read MoreGreta Thunberg’s zero-carbon Atlantic crossing is not an option for most. But it might be in years to come, if experiments with hydrogen, solar and batteries pay off. THE GUARDIAN
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