Our guide shows you specific ways in which you can act responsibly abroad—whether it's traveling, finding accommodation, consuming, or getting involved in local social activities. After all, sustainability starts with small everyday decisions: How do we travel? How do we live? How do we shape our student life in our new environment?
The content is based on the United Nations' 17 Sustainable Development Goals (SDGs). It offers suggestions on how you can contribute to a fairer and more environmentally friendly world with simple means – without losing sight of your everyday student life.
Download: Guide: Sustainable Study Abroad
Many of our partner universities are actively committed to sustainability—through green campus initiatives, environmental projects, research, or student engagement, for example. Our interactive map provides you with an overview of good examples worldwide—compact, visual, and easily accessible.
How to use the map:
Note on the ranking: A low sustainability score does not automatically mean that a university is performing poorly—many institutions are still in the early stages or have different priorities.
In the summer semester of 2026, we will be posting a series of short, practical tips on our Instagram channel (@IO_KU) covering sustainable mobility, living, consumption, and social engagement during a semester abroad. You are welcome to participate or contribute your own experiences.
Instagram: instagram.com/io_ku
The long-distance bus network in Europe is extensive and connects numerous cities and countries. It offers a cost-effective and environmentally friendly travel option that is a flexible alternative to other modes of transport.
Some options for long-distance bus companies:
Traveling by train is considered one of the most sustainable mobility options, as trains produce significantly less CO₂ emissions than planes and cars. In Europe in particular, the extensive rail networks offer an environmentally friendly way to travel quickly and comfortably between countries.
Carpooling contributes to green travel because it reduces CO2 emissions per person by allowing several people to share a vehicle, thereby reducing the number of vehicles on the road. This reduction in traffic volume leads to lower emissions and less environmental impact.
Important:
Planning a trip for mobility can be challenging, as various transportation options and connections must be taken into account. The following websites can help you find the right “green travel” option for you:
The ISIC and ESN cards offer various discounts and benefits for students, especially in the area of mobility.
If flying is the only option, many online booking platforms allow you to sort flights by the lowest CO2 emissions. However, regardless of CO2 savings, flying does not fall under the term “green travel.”
The guide and accompanying materials were developed as part of the service learning seminar “Sustainable Abroad,” which is part of the Germany-wide university project “Senatra – Service Learning and Sustainable Transformation at Universities.” The aim of the project is to empower students to make an active contribution to sustainable university development – in teaching, campus life, and international activities.
Further information on the project can be found at www.senatra-projekt.de and on the KU website.
If you have any questions or would like to contribute your own ideas on the topic of “sustainability while studying abroad,” please contact the International Office: