I recently had 12 months off work and travelled overseas for 3 of those months. My partner and I visited Thailand, Bhutan, Denmark, Spain, Scotland, and Ireland. It felt indulgent, and given the climate crisis I don’t know that I can ever justify flying again. I cycle and I am vegan for the climate, particularly for animals and wildlife. My only issue is that my brother and his family live in Germany, and getting enough time off work to see them via boat will be difficult. I have no issue declining travel by flight for work purposes.