# How do I calculate the carbon footprint of fishing net per kg?

Canonical: https://senseible.earth/answers/fishing-net-carbon-footprint-per-kg

Multiply the nylon or HDPE twine per kg of net by the yarn maker's per-kg figure, then add knotting machine electricity, heat setting, dyeing and packing. Divide the unit's energy by kg of netting dispatched.

## Material

- Nylon multifilament or HDPE monofilament twine by weight.
- Dyes and binders.
- Ropes, floats and sinkers if the net is rigged.

## Process

- Knotting or knotless netting machines.
- Heat setting and stretching.
- Bales and packing.

## Per kg

Report per kg of netting, and separately per rigged net if floats and ropes are included.

## Worked example: fishing net unit per kg (one month)

- Electricity: 30,000 kWh x 0.710 = 21,300 kg CO2
- PNG: 1,500 SCM x 2.05 = 3,075 kg CO2
- Netting dispatched (kg): 40,000
- Plant total: 24,375 / 40,000 = 0.609 kg CO2 per kg
- Add twine and rigging for the full figure

Inputs are illustrative; use your own bills and production records.

## What Senseible does here

Senseible reads the plant's electricity bills (CEA grid factor 0.710 kg CO2 per kWh, CO2 Baseline Database version 21.0) and fuel invoices (IPCC 2006 defaults) into a fingerprinted Scope 1 and 2 record, the plant-level input to a per-unit figure. Bought-in materials go to the supplier evidence trail; product reports are self-declared drafts.

- [Product carbon footprint calculator](https://senseible.earth/calculators/product-carbon-footprint)
- [Fishing vessel fuel emissions](https://senseible.earth/answers/fishing-vessel-fuel-emissions-per-tonne-catch)
- [Synthetic rope footprint](https://senseible.earth/answers/synthetic-rope-carbon-footprint-per-kg)
- [Textile industry](https://senseible.earth/industries/textile)

Sources: [GHG Protocol Product Standard](https://ghgprotocol.org/standards), [ISO 14067:2018, Carbon footprint of products (iso.org)](https://www.iso.org), [IPCC 2006 Guidelines, Volume 2 Energy (fuel defaults)](https://www.ipcc-nggip.iges.or.jp/public/2006gl/vol2.html), [CEA CO2 Baseline Database, version 21.0](https://cea.nic.in/cdm-co2-baseline-database/?lang=en)

Last reviewed 2026-10-20.