— Digital sustainability report

A lighter web, by intention.

The internet has a measurable environmental footprint. This document outlines the principles, decisions and limitations behind the Planetiers World Gathering website — and what we are still working to improve.

Version: v1.0
Last reviewed: May 2026
Scope: This website
Status: Living document

— 01 / Context

Why digital sustainability matters.

The information and communications technology sector is estimated to account for roughly 2 to 4 percent of global greenhouse gas emissions — comparable to the aviation industry — and its share is growing.

Websites contribute to that footprint through the energy required to manufacture devices, run data centers, transmit data across networks and render pages on user hardware. Heavier pages, more requests and longer sessions all compound the impact.

A gathering dedicated to regeneration cannot ignore the medium through which it is announced. The digital experience is part of the message.

— 01.5 / Alignment

Why this matters for Planetiers.

A gathering focused on regeneration cannot ignore the footprint of its own digital infrastructure.

The website is part of the event experience, and therefore part of its responsibility.

Every page, image, interaction and request contributes to the overall impact of the gathering. Designing lighter systems is one small but meaningful way to align the medium with the message.

— 02 / Principles

Six principles that guide every decision.

These are commitments, not certifications. They are tested against every page, component and dependency we add.

Restraint by default

Every byte shipped is a deliberate choice. We prefer omission over decoration and ship only what serves the reader.

Performance is sustainability

Fewer bytes, fewer requests and less compute mean less energy consumed end-to-end — from data center to device.

Longevity over novelty

We design for years, not seasons. Stable patterns, durable typography and content that ages without breaking.

Accessibility is non-negotiable

An inclusive experience is also a lighter experience. Semantic structure, sufficient contrast, predictable motion.

Transparency over claims

We publish what we measure and what we do not. No certifications we have not earned. No metrics we cannot verify.

Renewable infrastructure

Hosting and delivery are selected for proximity to renewable energy grids and efficient edge computing.

— 03 / Practice

Decisions applied to this website.

A non-exhaustive list of the engineering and design choices behind the experience you are currently using.

01Media: Images served in modern formats (AVIF, WebP) with responsive sizing and lazy loading. Video is avoided unless it carries irreplaceable information.
02Typography: A limited type system with subset webfonts and system fallbacks. No decorative weights loaded unless used.
03Motion: Animation is reserved for orientation and meaning, not ornament. Respect for prefers-reduced-motion is built in.
04Color & contrast: A dark palette tuned in OKLCH to reduce screen luminance on OLED devices while maintaining WCAG AA contrast.
05Code & dependencies: A conservative dependency tree, server-rendered routes and code-split bundles to minimize JavaScript on first paint.
06Data & tracking: No third-party advertising trackers. Analytics are limited to what we genuinely use, with privacy preserved by default.

— 03.5 / Note

Digital systems are part of the solution.

Digital sustainability alone will not solve the climate crisis.

But responsible digital systems can reduce waste, improve accessibility and support more resilient forms of collaboration.

For a gathering focused on regeneration, these principles are not separate from the mission. They are part of it.

— 04 / Measurement

Measured impact. Preliminary estimates, openly disclosed.

The figures below are calculated estimates based on the optimisations applied to this site, using the Sustainable Web Design Model v4. Field-verified measurements will replace them once continuous instrumentation is in place.

≈ 270KB

Initial transfer weight

First visit, homepage, desktop. Lower than 92% of pages tracked by the HTTP Archive.

≈ 0.10g CO₂e

Carbon per first visit

SWDM v4, global grid intensity 442 g/kWh. Repeat visits draw mostly from cache.

100%

Renewable-powered delivery

Served from Cloudflare's edge network, matched with 100% renewable energy since 2019.

AVIF

Primary image format

WebP and JPEG fallbacks served automatically through a responsive picture element.

Methodology

Carbon estimates follow the Sustainable Web Design Model v4 — an open methodology maintained by a working group within the W3C Sustainable Web Community Group. The model multiplies transferred bytes by an operational energy intensity of 0.81 kWh per gigabyte and a global grid intensity of 442 gCO₂e per kWh.

Reference period: May 2026
Page measured: Homepage, desktop
Energy intensity: 0.81 kWh / GB
Grid intensity: 442 gCO₂e / kWh
Cache model: First visit, cold cache
Verification: Internal, not yet audited

These figures are estimates, not measurements. They depend on the visitor's device, network and electricity grid, none of which we control. We publish them anyway because transparency about method is more useful than silence about impact.

— 05 / Statement

A responsible digital experience is one that respects the attention, the device and the planet of the person reading it. We treat this website as part of the work, not an advertisement for it.

Return to the gathering →Suggest an improvement

— 06 / Colophon

Document status.

This report evolves as the website evolves. Measurements, improvements and verified performance data will be published as instrumentation becomes available.

Version: 1.0
Published: May 2026
Status: Living document
Review cycle: Quarterly
Scope: Planetiers World Gathering website
Methodology: Evidence based