Train-bragging has become so popular in light of Greta Thunberg's activism that a Swedish Facebook group devoted to the topic has seen a 200% increase since April

10:16am PST - December 19th, 2019    greta thunberg - Business Insider

In an effort to reduce her carbon footprint, climate activist Greta Thunberg — who is Time's 2019 Person of the Year — hasn't flown since 2015. Thunberg's travel habits have inspired travelers from around the world and Sweden, in particular, to opt for more e…