In June 2024 the MRC Integrative Epidemiology Unit welcomed 200 participants to Bristol and 60 participants online to our 6th Mendelian randomization conference, making this our biggest conference to date. A key innovation this year was a Hub in the MRC Unit in Uganda, where delegates gathered in a video-linked room to participate in the conference, also with networking and catering on-site.
Sustainability was a key theme, and we set a target to reduce the carbon footprint by 50% mainly through converting to a hybrid conference with a virtual Hub, and booking vegetarian/vegan catering. The total estimated tonnes CO2 (tCO2) for the conference (mostly due to travel) was 143.25 tCO2. The Hub and virtual attendance avoided 147.5 tCO2 (see table).
Carbon footprint
Attendance | N people | tCO2 (travel) | tCO2 saved (by not travelling) |
In person | 198 | 135 | 0 |
Uganda hub | 22 | 1 | 72 |
Virtual | 40 | 1 | 73 |
Total | 260 | 137 | 145 |
Total footprint 143.25 tCO2 – including travel, hotels (6.18 tCO2) and food (0.25 tCO2)
Total savings 147.5 tCO2 – including hotels (1.93 tCO2) and vegetarian food (0.5 tCO2).
What we did
At the UK conference site: We pledged to have no single-use items, and all catering was served using standard crockery and cutlery. We encouraged delegates to consider their travel to reduce their carbon footprint – 10 people travelling from Europe came by train rather than flying. We had new conference badges, which were collected for re-use.
Hybrid conference: The conference was fully hybrid, with all the sessions automatically recorded and available for a month after the conference. Sessions had between 20 and 80 participants online and there was good uptake of recordings. We received positive feedback on the hybrid approach, e.g. “It was good being able to watch videos afterwards”.
Virtual Hub: To promote sustainability and encourage global connections, we piloted a conference hub in collaboration with our colleagues at the MRC Unit in Uganda. Overall, 23 participants joined the Hub and we received very positive feedback.
What did we learn? Our colleagues in Uganda were enthusiastic to organise a successful, interactive Hub. As a result, attendees were located in a well-organised conference room with good connectivity and audio, and beverages and meals throughout the conference. Organisers in Bristol supported this Hub through a well-coordinated conference schedule (allowing for differences in time zone), and Zoom chairs for all sessions to enable virtual questions.
A lot of thought and effort goes into organising any conference, and the support we had from everyone to make this one more sustainable and inclusive was uplifting. We hope other organisers will be inspired by the idea of global hubs to take research to the world whilst minimising our environmental impact.
Map showing residential addresses for virtual attendees at the MR conference. 145 tCO2 saved, compared to all those attendees flying to Bristol.
Did you know?
If you work at Bristol Medical School, you can do Carbon Literacy Training and make your own pledges to reduce carbon emissions in the workplace. If you’d like to take part, contact lucy.westover@bristol.ac.uk. If you’d like to find out more about carbon literacy, see the Carbon Literacy Project.
Authors (on behalf of the Organising Committee):
Amanda Chong, Segun Fatumo, Lindsey Gaunt, Moffat Nyirenda, Kate Tilling.