Ask to see the holiday company's policy for responsible tourism. It should be on their website, but if it isn't, pester them for it. It is only through customers seeking change that some organizations actually start to consider taking action themselves.      The Blonde Abroad has managed some guide on what you need for international journey. (http://theblondeabroad.com/2016/08/24/the-beginners-guide-to-international-travel/)       Plan your route to minimize carbon emissions - travel by train where possible, minimize internal flights and use other public transport methods when necessary. If you are booking your trip through a travel company that only connects with airports, ask them if they will support you in helping organize train travel and sorting out your transits from train stations when you arrive and depart. And if you have to fly, book direct flights avoiding transfers and stay for longer, taking fewer and longer holidays if you are going long haul.      For many people, it is important…