General10 regions available

onion

Compare carbon footprint data for onion across multiple sourcing regions to identify lower-emissions alternatives.

Last updated 2026-02-11

Lowest footprint

••••

kg CO2e / kg

India

Highest footprint

0.377

kg CO2e / kg

France

Emissions factors by sourcing region

Identify the lowest-carbon sourcing options for your Scope 3 Category 1 reporting.

Regionkg CO2eUnitCostYearComponentsDetails
India••••kg CO2e / kgAI cost calculator2025
View details →
China••••kg CO2e / kgAI cost calculator2025
View details →
Switzerland••••kg CO2e / kgAI cost calculator2025
View details →
Netherlands••••kg CO2e / kgAI cost calculator2025
View details →
New Zealand••••kg CO2e / kgAI cost calculator2025
View details →
Spain0.217kg CO2e / kgAI cost calculator2024
View details →
Denmark0.275kg CO2e / kgAI cost calculator2024
View details →
United Kingdom0.322kg CO2e / kgAI cost calculator2024
View details →
Rest of World••••kg CO2e / kgAI cost calculator2025
View details →
France0.377kg CO2e / kgAI cost calculator2024
View details →

Optimize your supply chain

Ready to find lower-emissions alternatives for onion?

Stop guessing and start modeling. Use Unibloom Switch to compare ingredient alternatives, suppliers, and sourcing regions with real-time cost and emissions benchmarks.

Frequently asked questions

What is the emissions factor for onion?
The emissions factor for onion ranges by sourcing region. Publicly visible values are 0.217 to 0.377 kg CO2e / kg, while some sources are locked in this public view.
Which country has the lowest carbon footprint for onion?
Based on available data, the lowest emissions option is 0.217 kg CO2e / kg in Spain.
How do I reduce Scope 3 Category 1 emissions from onion?
Switching to lower-emissions sourcing regions is one of the most effective ways to reduce Scope 3 Category 1 emissions from onion. Use the comparison table on this page to identify lower-carbon options.
What lifecycle stages are included in the onion emissions factor?
The emissions factor includes land use change (LUC), land management (LMGT), and energy inputs (ENI) where data is available, covering the full farm-gate carbon footprint.
Can I use these onion emissions factors for supplier-level reporting?
Yes. These emissions factors can serve as activity-based estimates for Scope 3 Category 1 (purchased goods and services) reporting under GHG Protocol. For higher accuracy, supplier-specific primary data is recommended.
logo
Unibloom Switch

Climate decisions made easy

© 2026 Unibloom. All rights reserved.