Define the goal before choosing the bins
“Zero waste” can be a direction, but it does not guarantee that a school event will produce no waste. Start by estimating attendance, duration, catering, suppliers and what the venue already provides. Look beyond recycling totals: materials not purchased and equipment reused are also meaningful outcomes.
Assign named people to catering, mobility, procurement and record-keeping. UNDP's sustainable-events guidance treats communication, travel, energy, water, food and waste as connected decisions. ISO 20121:2024 provides a broader management framework covering social, economic and environmental impacts; following this article does not constitute certification.
Reduce invitations and material purchases
Offer invitations, schedules and directions in accessible digital formats, while keeping a printed or staff-assisted option for people without suitable devices or connectivity. Collect reusable badges and lanyards after the event. Signs without dates can serve future meetings.
Check the school's existing inventory before ordering display boards, tablecloths, extension leads or water jugs. Ask suppliers whether packaging can be taken back and equipment rented rather than purchased. Digital delivery is not impact-free either: avoid unnecessary attachments and repeated mass messages.
Plan drinking water and food carefully
Tell participants in advance that they can bring refillable bottles and clearly signpost safe drinking-water points. Where suitable, use existing taps, dispensers or jugs rather than individual bottles. Water quality, food safety and accessibility requirements always take priority over waste targets.
Estimate portions using registrations and realistic attendance patterns. Consider smaller first servings with a second helping available. Label allergens clearly. Arrange any safe donation of surplus food with appropriate organisations and local rules before the event; do not distribute food that has been stored unsafely.
Choose travel options and venue together
Prefer venues reachable by public transport, walking or cycling. Provide practical stop locations, step-free access and safe pedestrian directions. A genuine remote-participation option can avoid unnecessary journeys for distant attendees, but should not exclude people who need in-person support.
Match room size and event duration to actual needs. Make sensible use of daylight, ventilation and existing audio-visual equipment without compromising safety or comfort. UNEP and UNFCCC's Green Events Tool assesses travel, accommodation, energy, catering and other event activities together.
Make collection instructions locally accurate
Waste prevention comes first, but remaining materials need clear collection routes. Confirm with the venue's contractor or local authority which items are actually accepted. Set up separate paper, packaging or food-waste streams only where suitable collection exists; a misleading bin label is worse than a simple, accurate system.
Place bins together near the points where waste is generated. Pair text with understandable icons and examples; consider multilingual and easy-read labels. Products marketed as “compostable” are not accepted by every facility. Check the receiving facility before directing such items to organics.
Include accessibility and safety
Sustainability is more than an environmental checklist. Check step-free routes, seating, readable signs, accessible toilets and communication support. Refill stations, collection points and check-in should work for people with different mobility and sensory needs.
Brief volunteers on sorting, food safety and directions. If collecting travel or consumption data, ask only for information genuinely needed and follow privacy and consent rules. Events involving children require appropriate supervision and safe materials.
Measure honestly and learn
Before the event, record expected attendance, portions ordered, disposable items bought, equipment reused and how any waste will be measured. Afterwards, weigh materials by stream where possible. If a number is only estimated, label it as an estimate rather than a measured outcome.
Claims such as “90% recycled” need reliable weights and downstream processing evidence; separate collection does not prove actual recycling. Agree on three improvements, owners and deadlines for the next event. Publishing limitations alongside achievements builds credibility.
A seven-day action plan
Day 1: define attendance and venue needs. Day 2: check stock and suppliers. Day 3: approve water and catering arrangements. Day 4: publish accessible travel and invitation details. Day 5: verify collection services and labels.
Day 6: walk through the venue with volunteers and review safety. Day 7: document counts, evidence collected with permission and lessons learned. Give every action a named owner. Adapt the plan to local law, institutional rules and the event's size.
Sources and scope
This is general planning guidance. Confirm local collection, food safety and accessibility requirements before applying it.