Perhaps to make people more aware of the current environmental situation both at home and at work, they have taken the initiative to encourage staff and students to sign up to a sort of "Green Pledge" - things like avoiding one use plastics (have a re-usable mug / water bottle / not accepting plastic cutlery and so on), use food waste bins for composting (each tea room / kitchen has a mini bin for depositing fruit & veg skin/cores, tea bags and coffee grains etc), recycling, using public transport regularly (or cycling/walking) instead of using a car ... and so on and so forth. There are lots of categories to sign or opt in to and every week an email is sent to remind you to tick targets met and points are awarded. There are also one off activities which you can be involved in such as setting up a blog about a particular topic such as alternatives to plastic, or being a volunteer in community projects or tree planting. Some activities have more points than others. I don't know how long the scheme will be running but at the end of each month, the points are tallied and those with the highest score receive a £20 shopping voucher.
Well I have signed up and opted in to a few categories so I'm pleased to see points building up already although if the leader board is anything to go off, my total score doesn't even get ranked
