{"id":1936,"date":"2026-10-21T08:00:55","date_gmt":"2026-10-21T06:00:55","guid":{"rendered":"https:\/\/www.bluepointliege.be\/?p=1936"},"modified":"2026-10-22T16:29:55","modified_gmt":"2026-10-22T14:29:55","slug":"event-carbon-footprint-calculate-reduce","status":"publish","type":"post","link":"https:\/\/www.bluepointliege.be\/en\/2026\/10\/21\/event-carbon-footprint-calculate-reduce\/","title":{"rendered":"Event Carbon Footprint: How to Calculate and Reduce It"},"content":{"rendered":"<!--\n    Title: Single Post\n    PostTypes: post\n-->\n\n<section class=\"gc-single-post\" x-data=\"singlePost\">\n    <!--\n    Title: Container\n    Mode: preview\n    SupportsJSX: true\n-->\n\n\n<div class=\"gc-container\">\n    <div class=\"gc-breadcrumbs gc-single-post__breadcrumbs\">\n    <nav aria-label=\"breadcrumbs\" class=\"rank-math-breadcrumb\"><p><span class=\"last\">Home<\/span><\/p><\/nav><\/div>\n        <div class=\"gc-single-post__wrapper\">\n            <div class=\"gc-single-post__inner-wrapper\">\n                                    <div class=\"gc-single-post__cat\">\n                        Events\n                    <\/div>\n                \n                                    <h1 class=\"gc-single-post__title\">Event Carbon Footprint: How to Calculate and Reduce It<\/h1>\n                \n                <div class=\"gc-single-post__subtitle\">21\/10\/2026<\/div>\n                <svg class='gc-single-post__icon' width=\"210\" height=\"180\" viewBox=\"0 0 210 180\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n<path d=\"M180 90H210V120H180V90Z\" fill=\"#1600FF\"\/>\n<path d=\"M135 60H165V120H135V60Z\" fill=\"#223A67\"\/>\n<path d=\"M45 60H75V120H45V60Z\" fill=\"#C8C7B0\"\/>\n<path d=\"M90 60H120V180H90V60Z\" fill=\"#5FB2A1\"\/>\n<path d=\"M0 0H30V120H0V0Z\" fill=\"#7E9EC0\"\/>\n<\/svg>\n            <\/div>\n\n                            <img decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/cdn.bluepoint.be\/wp-content\/uploads\/sites\/2\/2025\/09\/BPL_blog_rentree-1024x683.jpg\" class=\"gc-single-post__image\" alt=\"\" srcset=\"https:\/\/cdn.bluepoint.be\/wp-content\/uploads\/sites\/2\/2025\/09\/BPL_blog_rentree-1024x683.jpg 1024w, https:\/\/cdn.bluepoint.be\/wp-content\/uploads\/sites\/2\/2025\/09\/BPL_blog_rentree-300x200.jpg 300w, https:\/\/cdn.bluepoint.be\/wp-content\/uploads\/sites\/2\/2025\/09\/BPL_blog_rentree-768x512.jpg 768w, https:\/\/cdn.bluepoint.be\/wp-content\/uploads\/sites\/2\/2025\/09\/BPL_blog_rentree-1536x1024.jpg 1536w, https:\/\/cdn.bluepoint.be\/wp-content\/uploads\/sites\/2\/2025\/09\/BPL_blog_rentree-1920x1280.jpg 1920w, https:\/\/cdn.bluepoint.be\/wp-content\/uploads\/sites\/2\/2025\/09\/BPL_blog_rentree.jpg 2048w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>                        <div class=\"gc-single-post__introduction\"><p><strong>A corporate event may be impeccably organized while still generating substantial emissions that attendees never see. Understanding its impact means looking beyond the venue: travel, catering, energy, equipment and waste. Here is a structured method for calculating emissions in CO\u2082e, identifying priority sources and making decisions that genuinely reduce the footprint of your next event.<\/strong><\/p>\n<\/div>\n            <div><h2>Why measure before reducing?<\/h2>\n<p>An event\u2019s carbon footprint covers much more than the venue\u2019s electricity use or waste left after the reception. Guests\u2019 travel, catering, equipment, purchases and accommodation can generate significant emissions. Without figures, organizers risk multiplying visible initiatives without addressing the main impacts. A useful carbon assessment is primarily a <strong>decision-making tool<\/strong>: it helps compare formats, set priorities with suppliers and measure progress between editions.<\/p>\n<h2>1. Define exactly what the calculation covers<\/h2>\n<p>Start by specifying the format, duration, number of guests and stages covered: preparation, setup, reception, dismantling and waste treatment. Then determine who supplies the data and who consolidates the result. Emissions can be direct or indirect. The <a href=\"https:\/\/ghgprotocol.org\/calculation-tools-faq\" target=\"_blank\" rel=\"noopener\">GHG Protocol<\/a> distinguishes <strong>three scopes<\/strong>: direct emissions (scope 1), purchased energy (scope 2) and other indirect value-chain emissions (scope 3). Attendee travel and many outsourced services often fall into the third category for the organizer.<\/p>\n<p>Record exclusions and assumptions from the outset. A total without a clearly stated boundary is hard to interpret, however many decimal places it displays.<\/p>\n<h2>2. Collect activity data<\/h2>\n<p>Prepare a travel survey and a supplier data request before the event. Physical quantities are preferable to expenditure figures alone. If information is unavailable, use a documented estimate and disclose its uncertainty.<\/p>\n<ul>\n<li>Travel: departure locations, return distances, transport modes, car occupancy and supplier journeys.<\/li>\n<li>Energy: electricity or heating kWh attributable to the event, occupancy duration and audiovisual needs.<\/li>\n<li>Catering: meals served, menu composition, drinks, packaging and surplus food.<\/li>\n<li>Equipment: hired or purchased furniture, signage, staging and equipment, including transport.<\/li>\n<li>Other sources: overnight stays where relevant, consumables and quantities of waste treated.<\/li>\n<\/ul>\n<h2>3. Calculate emissions in CO\u2082e<\/h2>\n<p>The operational formula is <strong>activity data \u00d7 emission factor = emissions in kg CO\u2082e<\/strong>. Apply a suitable factor to each source: per passenger-kilometre, per kWh or per product quantity. Factors should match the location, year, technology and actual composition as closely as possible. The GHG Protocol recommends activity-specific data when available.<\/p>\n<h3>Worked example: attendee travel<\/h3>\n<p>Take <strong>120 guests each travelling 40 km return<\/strong>, or 4,800 passenger-kilometres. Using a purely illustrative factor of <strong>0.10 kg CO\u2082e per passenger-kilometre<\/strong>, the result is 480 kg CO\u2082e. The final figure depends on actual travel modes: this hypothetical factor must not be used in a published inventory. Transport records should also avoid double counting guests, teams and suppliers.<\/p>\n<p>Then add the sources together and present the total in tonnes of CO\u2082e and, as an additional metric, kilograms per attendee. Retain the assumptions and source of every factor so the calculation can be reproduced.<\/p>\n<h2>4. Reduce the main sources of emissions<\/h2>\n<h3>Travel and location<\/h3>\n<p>Choose a venue accessible by public transport, adapt the schedule to connections and provide practical directions in the invitation. Encourage carpooling and assess remote participation for international speakers. Choosing an accessible venue can be more effective than last-minute messaging about good habits.<\/p>\n<h3>Catering and food waste<\/h3>\n<p>Request attendance confirmations, match quantities to actual guests, offer attractive plant-based options and plan how surplus food will be handled. Make these decisions with the caterer before approving the menu, not after delivery. The aim is to reduce both food-related emissions and meals prepared unnecessarily.<\/p>\n<h3>Equipment and purchasing<\/h3>\n<p>Prefer rental, shared use and reuse of staging and signage. Avoid automatic giveaways, unnecessary printing and oversized installations. <a href=\"https:\/\/www.bluepointliege.be\/evenements\/\">Explore BluePoint Li\u00e8ge\u2019s event layout options<\/a> to design a setup suited to your format without unnecessary equipment.<\/p>\n<h2>5. Make monitoring a shared responsibility<\/h2>\n<p>Include environmental tracking in the supplier brief: request available consumption data from the venue, quantities served from the caterer and equipment details from technical suppliers. Appoint one person to consolidate the results. <a href=\"https:\/\/www.iso.org\/cms\/live\/live\/en\/sites\/isoorg\/contents\/data\/publication\/10\/03\/PUB100302\/relatedStandards\/standard-reference%40\/86389.html\" target=\"_blank\" rel=\"noopener\">ISO 20121:2024<\/a>, whose <strong>second edition was released in 2024<\/strong>, provides a responsible management framework applicable to events of different sizes. It does not, by itself, constitute an emissions calculation.<\/p>\n<h2>6. Report results without greenwashing<\/h2>\n<p>Your report should show the total, breakdown by source, boundary, missing data, factors used and actions selected. Compare only events with compatible formats and methods. Distinguish actual emission reductions from voluntary contributions to climate projects: an advertised offset does not erase emissions generated. Finally, set two or three targets for the next edition, each with an indicator, owner and deadline.<\/p>\n<h2>From measurement to a genuinely better-designed event<\/h2>\n<p>The value of a carbon assessment lies less in the apparent precision of a number than in its ability to improve the next event. Even an imperfect first inventory, if transparent, can identify the largest sources and inform decisions about budget, travel, catering and equipment. A consistent method then makes progress measurable without turning environmental communication into an unverifiable promise.<\/p>\n<p>From the initial planning of your next seminar, conference or corporate event, bring your team and suppliers together around one clear objective: <strong>measure what matters and reduce what can genuinely be reduced<\/strong>. <a href=\"https:\/\/www.bluepointliege.be\/contact\/\">Contact BluePoint Li\u00e8ge<\/a> to discuss a configuration suited to your needs and plan your event on a practical basis.<\/p>\n<\/div>\n        <\/div>\n<\/div>\n<\/section>\n","protected":false},"excerpt":{"rendered":"<p>A corporate event may be impeccably organized while still generating substantial emissions that attendees never see. Understanding its impact means looking beyond the venue: travel, catering, energy, equipment and waste. Here is a structured method for calculating emissions in CO\u2082e, identifying priority sources and making decisions that genuinely reduce the footprint of your next event.<\/p>\n","protected":false},"author":2,"featured_media":1016,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[30,41],"tags":[],"class_list":["post-1936","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-evenements","category-events-en"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.bluepointliege.be\/en\/wp-json\/wp\/v2\/posts\/1936","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.bluepointliege.be\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.bluepointliege.be\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.bluepointliege.be\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.bluepointliege.be\/en\/wp-json\/wp\/v2\/comments?post=1936"}],"version-history":[{"count":2,"href":"https:\/\/www.bluepointliege.be\/en\/wp-json\/wp\/v2\/posts\/1936\/revisions"}],"predecessor-version":[{"id":1939,"href":"https:\/\/www.bluepointliege.be\/en\/wp-json\/wp\/v2\/posts\/1936\/revisions\/1939"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bluepointliege.be\/en\/wp-json\/wp\/v2\/media\/1016"}],"wp:attachment":[{"href":"https:\/\/www.bluepointliege.be\/en\/wp-json\/wp\/v2\/media?parent=1936"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bluepointliege.be\/en\/wp-json\/wp\/v2\/categories?post=1936"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bluepointliege.be\/en\/wp-json\/wp\/v2\/tags?post=1936"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}