The FEI published a guide to make equestrian events more sustainable.
You can find more about this here:http://thesustainablehorse.com/fei-launches-sustainability-handbook-for-equestrian-events/
Also we wrote an article to make you show more sustainable here: http://thesustainablehorse.com/9-tips-to-make-your-equestrian-event-more-sustainable/
An example of a sustainable dressage tour you can find here: http://thesustainablehorse.com/swedish-lovsta-future-challenge-compensates-co2-emission/
The European championships in 2017 in Goteborg will be completely sustainable! We are looking forward to finding out exactly what they will do.