In this section you will find information on the carbon footprint of the UB, as well as good practices for more responsible consumption at university.

What do we do at OSSMA?

New features of the UB energy saving challenge: first auction of prizes, recognition of an academic credit, and number of participants.

We have been reducing energy consumption for more than 10 years, and it is up to all of us to continue doing so. The "We are responsible" campaign invites us to actively participate in this challenge.

UB computers have a new corporate wallpaper with the logo of the energy saving campaign.

During the first quarter of 2023, electricity consumption decreased by 4.5% and gas by 23.3%, compared to the same period in 2022. On the other hand, water consumption has increased by 8.2%.

Between January and June 2022, electricity consumption has increased by 11.96% and water consumption by 28.57%, compared to the first half of 2021. Instead, gas consumption has decreased 0.03%. When interpreting this evolution, it should be borne in mind that…

Starting on September 2020 till November 2020, we published through our Twitter account a series of eco-tips on the carbon footprint of the University of Barcelona, with proposals to reduce our greenhouse gas emissions. We think it is a good idea to summarize them in this post.


Responsible consumption criteria

What and how to buy

Carbon footprint at the UB

Diffusion of energy and water consumption



Water consumption


Electricity consumption


Natural gas consumption


Paper consumption


CO2 emissions




We reuse

More info

Icones campanya En som responsables

Energy saving

More info

Application for labels and posters on responsible consumption

More info