Train travel has significantly less impact on the environment than air travel, and there has been a movement in the past few years to use trains for short trips rather than planes, especially for business trips within Europe. In Sweden, the home of environmentalist Greta Thunberg, there is even a word for it — flygskam, meaning flight shame. A BBC report from 2020 stated that a flight emits 133 grams of CO2 emissions per person per kilometer, while a train emits as little as six grams.