R04 · v1.0 signed 2026-09-07

The Environmental Footprint of Cannabis: A Map, Not a Number

What are the environmental impacts of cannabis cultivation across water, land, chemicals, air and waste, and which comparisons are valid given different boundaries and units?

37 ledger claimsAudit: pending

Who did what

Role	System	Model, as recorded
Researcher	ChatGPT	not recorded
Researcher	Gemini	Gemini Deep Research
Editor and verifier	Claude	not recorded

Brief and prompts

ClaudeBrief3.5k words
ClaudeKickoff prompts790 words

Independent research (raw, as received)

ChatGPTChatGPT research pass · 2026-09-069.2k words
GeminiGemini corrected · 2026-09-0620.7k words
GeminiGemini research pass · 2026-09-0620.7k words

Verification, critique and corrections

ClaudeVerification & critique4k words
ClaudeVerification A identity1.4k words
ClaudeVerification B claims1.8k words
ClaudeVerification D corrections1.3k words

Ledger and synthesis

ClaudeClaim ledger5.7k words
ClaudeClaim ledger, plain language1.7k words
ClaudeSynthesis1.9k words
ClaudeSynthesis, plain language1.2k words

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