# Divergence Map — Where CTH Extensions Go Beyond Sources

## Purpose

This page documents every area where the Cleantech Taxonomy diverges from or extends beyond its four upstream sources. Divergence is explicitly labelled — no CTH extension is presented as sourced from CPI, EU Taxonomy, IEA, or CBI.

## Gap Categories

### 1. Adaptation Technologies (CT-EX-001 to CT-EX-004)

**Why upstream sources miss this:** CPI tracks adaptation finance flows but does not classify adaptation technologies. EU Taxonomy has an adaptation objective but focuses on infrastructure resilience, not crop-level adaptation. IEA is energy-only. CBI has a Resilience Taxonomy but it covers physical asset resilience, not agricultural adaptation.

**What CTH adds:** Four nodes covering the practical adaptation technologies that LATAM smallholders need — drought-resistant crop varieties, nature-based flood resilience, shade-grown heat adaptation systems, and early warning systems for climate events.

**LATAM relevance:** Critical. Climate adaptation in tropical agriculture is the most immediate need for Colombia's 500,000+ coffee farming families.

### 2. Nature-Based Solutions & Bioeconomy (CT-EX-005 to CT-EX-009)

**Why upstream sources miss this:** CPI covers "AFOLU" broadly. EU Taxonomy includes forestry activities. But none of the 4 sources classify community-managed NbS, PES platforms, non-timber forest product value chains, or silvopastoral systems as distinct technology/activity categories.

**What CTH adds:** Five nodes that represent core LATAM climate strategies — community reforestation, mangrove/blue carbon, silvopastoral systems (a flagship Colombia GF Taxonomy activity), NTFP bioeconomy, and PES platforms (pioneered by Costa Rica).

**LATAM relevance:** These are not marginal activities — silvopastoral systems alone are a USD 100M+ annual investment category in Colombia via Fedegán and the Green Finance Taxonomy.

### 3. Small-Scale & Informal Economy Cleantech (CT-EX-010 to CT-EX-013)

**Why upstream sources miss this:** All 4 upstream sources are designed for institutional/commercial scale. CPI tracks flows above USD 1M. EU Taxonomy targets reporting entities. IEA classifies industrial technologies. CBI certifies bonds. None of them classify the sub-1kW, sub-USD-500 clean energy solutions that serve LATAM's informal economy.

**What CTH adds:** Four nodes for pico-solar, community biodigesters, artisanal cleantech (solar drying, clean cookstoves), and productive energy use for microenterprises.

**LATAM relevance:** The majority of LATAM climate impact occurs at the smallholder and informal economy level. Excluding these technologies from a taxonomy means excluding the people who need climate solutions most.

### 4. AI-for-Climate & MRV Enabling Technologies (CT-EX-014 to CT-EX-017)

**Why upstream sources miss this:** CPI tracks digital finance. EU Taxonomy has ICT activities. But satellite deforestation monitoring, AI-powered MRV, supply chain traceability platforms, and precision agriculture data platforms are not classified as distinct categories by any of the 4 sources — they sit in the gap between ICT and compliance infrastructure.

**What CTH adds:** Four nodes covering the technology stack that makes EUDR compliance operational and enables carbon MRV for LATAM supply chains.

### 5. EUDR Supply Chain Services (CT-EX-018 to CT-EX-021)

**Why upstream sources miss this:** The EUDR (Regulation (EU) 2023/1115) is a market access regulation, not a sustainability taxonomy. None of the 4 upstream sources classify the service layer that makes EUDR compliance work — certification services, due diligence platforms, smallholder technical assistance, and operator documentation services.

**What CTH adds:** Four nodes covering the EUDR compliance service ecosystem. These are the nodes most directly relevant to CTH's commercial products (Data Boathouse).

## Summary

<table id="bkmrk-gap-categorynodescov"><tr><th>Gap Category</th><th>Nodes</th><th>Covered by CPI?</th><th>EU Tax?</th><th>IEA?</th><th>CBI?</th></tr><tr><td>Adaptation Technologies</td><td>4</td><td>No</td><td>Partial</td><td>No</td><td>Partial</td></tr><tr><td>NbS &amp; Bioeconomy</td><td>5</td><td>Partial</td><td>Partial</td><td>No</td><td>Partial</td></tr><tr><td>Informal Economy</td><td>4</td><td>No</td><td>No</td><td>No</td><td>No</td></tr><tr><td>AI/MRV Enabling Tech</td><td>4</td><td>No</td><td>No</td><td>No</td><td>No</td></tr><tr><td>EUDR Supply Chain</td><td>4</td><td>No</td><td>No</td><td>No</td><td>No</td></tr><tr><td>**Total**</td><td>**21**</td><td colspan="4">8 nodes have zero upstream coverage; 13 have partial coverage from 1-2 sources</td></tr></table>