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Ethics · E-07

Environmental Impact Statement

The environmental cost of our compute, stated openly.

Adoptedv1.0Download PDF
Deliverable
E-07
Document ID
LS-ETH-007
Version
1.0
Effective
July 23, 2026
Owner
Ops Lead
Review cycle
Annual

1Purpose & Scope

This statement sets out how LinkScape understands, tracks, and works to reduce the environmental impact of its activities. For an AI nonprofit, that impact is overwhelmingly the energy consumed by compute. This document establishes a lightweight, honest tracking practice and a set of sustainability goals proportionate to a ~10-person youth-led organization.

Our commitment is candor over greenwashing: where we do not yet measure something, we say so and provide a template to capture it once data is available. We do not publish invented figures. This statement complements — and draws its usage data from — F-03 Compute Resource Usage.

  • In scope: energy and carbon associated with LinkScape's compute fleet, plus incidental impacts (SaaS tooling, member travel to events).
  • Out of scope: embodied manufacturing emissions of hardware LinkScape does not own or control, and the operational footprint of Hack Club / HCB as our fiscal sponsor.
  • Audience: members, fellows, beneficiaries, and partners who want to understand our footprint honestly.

2Our Environmental Footprint

LinkScape's footprint is dominated by one thing: training and running AI models on GPUs. Everything else — laptops, Slack, Notion, Zoom, occasional travel — is small by comparison. We therefore focus our tracking effort where it matters.

2.1Footprint Breakdown (relative)

SourceRelative significanceNotes
GPU compute (80× H100 fleet)DominantTraining and inference; the single largest driver of our energy use
SaaS & communication toolsMinorGitHub, Slack, Notion, Zoom, WeChat — hosted on vendor infrastructure
Member devicesMinorPersonal laptops; mostly remote work per O-10
Event travelOccasionalHackathons and conference travel (e.g. paper presentation); episodic, not continuous

3Compute Energy Usage

The compute fleet — 80× NVIDIA H100 GPUs — is LinkScape's most significant resource and its dominant environmental footprint. Access to the fleet is tiered and logged per F-03 Compute Resource Usage, and that same logging is the foundation of our energy tracking: every logged GPU-hour is an energy datapoint.

3.1Why Compute Dominates

  • Each H100 draws substantial power under load, and training jobs can occupy many GPUs continuously for hours or days.
  • Cooling and supporting infrastructure add overhead on top of the GPUs' direct draw (commonly expressed as a data-center PUE multiplier).
  • Idle-but-powered GPUs still consume energy — so utilization discipline, not just raw efficiency, is central to reducing impact.

3.2Estimating Energy from Compute Logs

We estimate energy consumption from the GPU-hour logs maintained under F-03, using a transparent formula so anyone can check our math. Values are estimates, clearly labeled as such.

  1. Pull total GPU-hours for the period from the F-03 access logs.
  2. Multiply by an assumed average per-GPU power draw (kW) to get GPU energy (kWh).
  3. Apply a data-center overhead multiplier (PUE) to account for cooling and infrastructure.
  4. Record the assumptions used so the estimate is reproducible and revisable.

3.3Energy Tracking Template

The values below are intentionally blank. They are populated each reporting period from F-03 logs and our stated assumptions — we do not publish placeholder or invented numbers.

FieldValueSource / assumption
Reporting periodQuarter/year
Total GPU-hoursF-03 access logs
Assumed avg. power per H100 (kW)Documented assumption
Estimated GPU energy (kWh)GPU-hours × power
Assumed PUE (overhead multiplier)Documented assumption
Estimated total energy (kWh)GPU energy × PUE
Fleet utilization (%)Active vs. powered GPU-hours

4Carbon Footprint Tracking

Energy becomes carbon at a rate that depends on where and when the electricity is generated. Because LinkScape does not directly operate the data center powering its fleet, our carbon figures are estimates derived from energy usage and grid emissions factors, and we are explicit about that limitation.

4.1Estimation Method

  • Carbon estimate = estimated total energy (kWh, from Section 3) × grid carbon-intensity factor (kgCO2e/kWh) for the relevant region.
  • Where the hosting region and its grid mix are known, use a region-specific factor; otherwise use a conservative published factor and note the uncertainty.
  • Report emissions as an estimated range, not a false-precision single number, when inputs are uncertain.

4.2Carbon Tracking Template

Blank by design — populated when energy data and a defensible emissions factor are available. LinkScape will not report a carbon number it cannot substantiate.

FieldValueSource / assumption
Reporting period
Estimated total energy (kWh)From Section 3.3
Grid carbon-intensity factor (kgCO2e/kWh)Region-specific or conservative published factor
Estimated emissions (kgCO2e)Energy × factor
Estimation confidenceHigh / medium / low + reason

4.3Limitations & Honesty

We disclose the boundaries of these figures: they exclude embodied hardware emissions, depend on assumptions we may refine, and cover only scopes we can reasonably measure. Improving the accuracy of these estimates is itself one of our sustainability goals (Section 5).

5Sustainability Goals

Our goals are chosen to fit our size: things a small team can actually do, that reduce real impact, and that reinforce good compute discipline we already need for cost and fairness reasons (F-03).

5.1Efficiency Goals

  • Maximize useful work per GPU-hour: prefer efficient architectures, mixed precision, early-stopping, and reusing checkpoints over redundant re-training.
  • Reduce idle-but-powered GPU time through the tiered scheduling and logging already required by F-03.
  • Favor sharing pretrained/open models and datasets (E-06) over training from scratch when it meets the research goal.

5.2Measurement Goals

  • Populate the Section 3 and 4 templates at least once per reporting cycle from F-03 logs.
  • Improve estimate confidence over time by pinning down the hosting region's grid factor and a realistic PUE.
  • Surface a simple energy/utilization summary in the annual impact reporting cycle (I-07 / G-09).

5.3Culture & Awareness Goals

  • Include a short 'is this compute justified?' prompt in high-impact project review (feeds the environmental-cost criterion in E-05).
  • Encourage remote-first collaboration (O-10) and virtual meetings (Zoom) to keep travel episodic.
  • Report honestly — including when a goal is missed — rather than optimizing for appearances.

6Roles & Review

6.1Ownership

RoleResponsibility
Ops Lead (owner)Maintains this statement; populates templates each cycle; reports the summary
CTOProvides fleet utilization data and efficiency guidance; owns the compute fleet
Members using the fleetLog usage per F-03; apply efficiency practices in Section 5.1

6.2Review Cadence

This statement is reviewed annually alongside financial and impact reporting, or sooner if the compute fleet's scale or hosting arrangement changes materially. Updates and the latest populated templates are stored per O-04 Document Management.

Cross-references: F-03 Compute Resource Usage (primary source of usage data and access tiers), E-05 Ethical Review Board (environmental-cost review criterion), E-06 Open Source Contribution, O-04 Document Management, O-10 Remote Work, I-07 Annual Impact Report, G-09 Annual Reporting.

Approval and Adoption

Adopted upon signature by the officers below. Pending ratification at Sprint 0 (see LS-REG-001).

Document Maintenance Log

VersionDateAuthorChanges
1.0July 23, 2026LinkScape LeadershipInitial release

LinkScape runs as a fiscally sponsored project of The Hack Foundation dba Hack Club, a 501(c)(3) nonprofit. Hack Club holds the charitable status and every dollar moves through Hack Club Bank.

This page and the PDF are both generated from the source document in LinkScape's organizational pack. Cover furniture and approval blocks are omitted here; the text of the policy is reproduced in full.