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FertilizersAmmonia · Blue vs Green · CBAMGated · June 2026

Fertilizer Decarbonization: The Full White Paper

Ammonia, carbon markets, and the economics of low-carbon nitrogen — per-process intensities from the TerraNova model facility, 27 levers in six families, and the blue-vs-green hydrogen decision worked to a verdict.

By Climate Decode · Decarbonization Series · · The full report

BLUE AMMONIA · LAYERED MAC (CAD/t)$87Plain$79+ITC−$16+Carbon−$25Full stackUnder a carbon price, capturing ammonia’s CO₂ pays for itself.
Model facility
480 kt/yr
ammonia + downstream-N complex, fully modelled
Decarbonization levers
27 levers
six families, from N₂O catalysts to ATR + CCS
Worked case studies
Blue vs Green
the hydrogen decision, full math
White Paper

What's inside

Fertilizer’s climate problem is concentrated in ammonia, and ammonia’s solution turns on a single decision — how to make low-carbon hydrogen. This white paper sets out the global state of the industry, quantifies the emission intensity of each production step using Climate Decode’s TerraNova model, and tests the two leading answers — blue and green ammonia — against the economics that decide which one a producer should build.

Through two worked case studies it shows exactly how the CCUS and Clean Hydrogen investment tax credits, a rising carbon price (or the US 45Q/45V credits), and CBAM combine to determine which projects clear an investment committee — and why the grid, not the plant, decides whether green ammonia abates at all.

Full contents

  • 01State of the Industry
  • 02Fertilizer Categories and How Each Is Made
  • 03Emission Intensity by Process — Model Data
  • 04Decarbonization Solution Families
  • 05Carbon Markets and Incentives — A Global View
  • 06Case Studies — Blue vs Green Ammonia
  • 07Challenges to Deployment
  • 08Take-aways

A sample from inside

Case 1 — Blue ammonia (ATR + CCS): the plain MAC of CAD $87/tCO₂ falls to $79 with the CCUS ITC and flips to −$25/t once the carbon price is applied to ~476 kt of Scope-1 reductions — a ~3-year payback while removing ~436 ktCO₂/yr. The full paper shows every layer, the US 45Q equivalent, and the grid test that decides the green case.

Free · Gated download

Get the full white paper

Enter your details to access the complete white paper — every figure, the per-product intensity tables, the lever catalogue, and both case studies.

  • Per-product intensities from the TerraNova model
  • Blue vs green ammonia, layered MAC math
  • Carbon-market, ITC & CBAM tables
  • Sequencing & double-count discipline

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Executive Summary

The Argument in Brief

Where the emissions sit

The two case studies, in one line each

Blue ammonia (ATR + CCS) abates ~436 ktCO₂/yr at −$25/t with the CCUS ITC and a carbon price — a ~3-year payback, nearly indifferent to the grid. Green ammonia (electrolysis) only abates net emissions below ~59 kg CO₂/MWh of grid intensity, and its lifetime MAC stays above $1,400/t even with full incentives — a clean-power play, not a gas-plant retrofit.

The recurring finding

Sequence cheap first, capture once, electrify only on a clean grid: the reforming/capture routes are mutually exclusive, and double-count discipline — not technology — is what keeps a fertilizer decarbonization plan bankable.

Selling into Europe? The free CBAM & Fertilizer article covers the border-cost mechanics in a 10-minute read — no form required.

TerraNova by Climate Decode

The whole workflow in this paper, in one platform.

TerraNova ingests plant operations data, allocates emissions to each process step with GHGRP-consistent ammonia/urea accounting, screens 27 levers against the local policy stack double-count-free, and returns a finance-grade investment plan — ranked portfolio, deployment schedule, NPV/IRR by lever, and year-by-year compliance position.

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Climate Decode
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Climate Decode

Decarbonization Series · Industrial Decarbonization & Carbon Markets

Climate Decode builds TerraNova — the platform for emissions baselines, marginal abatement cost curves, and finance-grade project economics — and publishes sector-by-sector decarbonization research: pulp & paper, food, and now fertilizer. Figures in this paper derive from a representative model facility and illustrate method, not a specific plant.

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Build your plant's decarbonization investment plan.

TerraNova turns plant operations data into a finance-grade roadmap — emissions hotspots, a marginal abatement cost curve, NPV/IRR by lever, and policy-aware economics across every revenue layer.