Reducing the environmental impact of the EGU General Assembly

With more than 16,000 attendees until 2019, the EGU’s General Assembly, held in Vienna, Austria each spring, has a substantial environmental impact. For participants, this includes travel to and in Vienna, accommodation, food, and drinks. For organizers, this concerns the building in which the meeting is held, information media, badges, the catering we provide, the signage, and other additions made specifically for the conference.

To minimize the environmental footprint of Europe's largest geoscience event, the European Geosciences Union (EGU) has implemented extensive greening measures and continues to explore new ones. This webpage provides information on the numerous green initiatives and engagements that have allowed EGU, in collaboration with its partner congress organizer Copernicus Meetings and the Austria Center Vienna (ACV), to achieve more sustainability at the General Assembly.

EGU strongly encourages General Assembly attendees to help reduce the environmental impact of their participation by considering the following:

  • traveling by train, bus, metro, or bicycle to/from and within Vienna whenever possible,
  • booking eco-friendly accommodations in close proximity to the congress centre and reachable by public transport (free ticket included in registration),
  • bringing a reusable water bottle,
  • bringing a reusable coffee cup,
  • avoiding printing programmes, but instead creating a personal programme online,
  • bringing the name badge lanyard from a previous EGU conference,
  • avoiding the distribution of flyers or other printed materials,
  • avoiding the production of waste and, in particular, the utilization of single-use materials wherever possible,
  • applying a strict waste separation by using the provided compartments inside the congress centre.

Travelling & accommodation

  • Attendees are asked to compare the different means of transportation for their individual travels. Such a service is offered by various sites (e.g. the German website
  • EGU offsets the carbon footprint for all attendees' travel through In 2018 and 2019, voluntary carbon offsetting through EGU was used by 25% to 32% of attendees.
  • We encourage participants to travel by train or bus to Vienna whenever possible. Overnight trains to Vienna are available from Rome (ÖBB), Zurich (SBB), and Brussels (ÖBB), as well as some large cities in Germany (e.g. Berlin, Hamburg, Munich, Dusseldorf). A service from Amsterdam to Vienna is also being planned.
  • Train travel can among others be planned at DB, SBB, ÖBB Scotty, and SNCF.
  • Bus travel can among others be planned at
  • For travel within Vienna, including to/from the conference centre, we have included a local transportation ticket in the registration fee. The Austria Center Vienna (ACV) can be reached by metro U1 to the station "Kaisermühlen/Vienna Int. Centre".
  • EGU promotes bike rental in Vienna and provides a guarded bicycle parking lot at the ACV. Bicycles can be rented through CityBike Vienna, Donkey Bike, or, close to the ACV, at Copa Cagrana Rad und Skaterverleih.
  • We encourage participants to choose eco-friendly accommodations and recommend choosing hotels in close distance to the conference centre ACV. Various eco-labels for hotels are available and an overview is given on the website of the Austrian Ecolabel.

Catering at the General Assembly

  • We provide water fountains throughout the building and encourage attendees to bring their own reusable water bottles. Since 2018, this has saved about 30,000 single-use PET water bottles per year (based on the number distributed in 2017).
  • Coffee and tea are still served in single-use paper cups to be disposed in separated paper waste compartments. In 2019, EGU began encouraging attendees to bring their own coffee mugs and offered reusable coffee cups for sale at the General Assembly. EGU strongly encourages attendees to bring their own multi-use mugs. Switching to multi-use coffee cups could save up to 100,000 paper cups at each General Assembly.
  • We strongly encourage our on-site catering partner to offer more selections of vegetarian and vegan food.

Information on the General Assembly

  • We no longer print a paper programme book and daily programme and instead encourage attendees to access the programme online and/or through smartphones. This has saved about 1 million printed A5 pages per year since 2018.
  • The daily newsletter EGU Today went to fully digital in 2019, saving 15,000 double-sided A4 printed pages per year.
  • From 2022, EGU pens distributed at the EGU booth are made of bamboo rather than plastic.

At the General Assembly

  • Name badges consist of lanyards made of 100% recycled PET and a paper badge made of 100% FSC-recycled paper. From 2022, the paper badges will no longer be pocketed in a plastic sleeve. Attendees are asked to bring their EGU lanyard from a past conference or, if taking a lanyard this year on site, returning it at the end of the conference or keep it for next year. The paper badge is asked to be disposed in paper waste in order to allow recycling.
  • We advise attendees to avoid the production of waste wherever possible, to utilize multi-use materials, to strictly separate waste, and to avoid the distribution of flyers or other single-use materials.

Initiatives by the Austria Center Vienna

  • Solar collectors provide hot water for kitchens and restrooms.
  • Water is taken from ACV's own well to flush all of the conference centre's 240-plus toilets.
  • 7,000 bulbs were replaced with LEDs, saving 500,000 kWh/year.
  • The ventilation system was modernised in 2018, including the installation of a high-efficiency heat recovery system.
  • The ACV welcomes and certifies green meetings. More details can be found at ACV's CSR website.

More information

On-site contact at ACV

For further information about Green Meetings at the ACV, the criteria for Green Meetings, or practical guidance, please contact the ACV Green Meeting Agent Sascha Tretenhahn and visit the ACV website.


EGU welcomes feedback and suggestions on how we can further improve initiatives aimed at reducing the environmental impact of the General Assembly. You can provide feedback through the annual General Assembly survey, by contacting the EGU Programme Committee Chair, or by contacting Copernicus Meetings.