# How do I calculate emissions from curing tobacco in flue-cured barns?

Canonical: https://senseible.earth/answers/flue-cured-tobacco-barn-fuel-emissions

Weigh the coal or firewood burned per barn season and divide by kilograms of cured leaf. Coal CO2 is fossil and counts fully; firewood CO2 is biogenic and reported separately. Fuel per kilogram varies widely with barn insulation and furnace design.

## Records

- Coal tonnes or firewood kilograms per barn.
- Green leaf loaded and cured leaf out.
- Number of curings in the season.

## Reducing it

Insulated barns and better furnaces cut fuel per kilogram, and the per-kg figure shows the gain.

## One barn season

- Coal 6 t, cured leaf 3,000 kg
- Coal CO2 from tonnes x NCV x the IPCC factor, then divided by 3,000 kg

## What Senseible does here

Senseible reads quantities, dates and units from your bills and invoices and shows the factor and source used on every line.

- [Indian coal by GCV](https://senseible.earth/answers/indian-coal-emissions-by-gcv)
- [Biomass fuel in boilers](https://senseible.earth/answers/biomass-or-waste-fuel-in-boiler-scope-1)

Sources: [IPCC 2006 Guidelines, Volume 2: Energy](https://www.ipcc-nggip.iges.or.jp/public/2006gl/vol2.html), [GHG Protocol Corporate Standard](https://ghgprotocol.org/corporate-standard)

Last reviewed 2026-10-22.