The most useful webpages for climate-conscious travellers:
- The Man in Seat Sixty-One: excellent train travel guide for anywhere in the world
- Trainline: cheap tickets by combining and comparing offers from different ticketing agencies; might save more than 70%. Includes also many night trains!
(Loco2 offers a similar service – try both, their search engines occasionally produce different connections!)
- Rome2rio: Compare all means of transportation (flights, trains, ferries, buses, night trains…) between any two places in the world.
- ÖBB Nightjet: biggest operator of night trains in Europe. Also Trenitalia, French SNCF, Hungarian MAV, Swedish and Norwegian Railways, and some others still operate night trains. Also Amtrak has night trains!