Knowledge base
The brain, and the person who steers it.
VERDANT studies the syllabus sustainability consultants are trained on, but it learns from the primary sources themselves, the standards, regulations and official guidance, then proves it with a closed-book exam it can't see the answers to. Reg Orme, GreenStack's founder, is accountable for every piece of client work.
How VERDANT learns
01
Study
Reads the official source, not a summary of it, and writes notes where every rule, threshold and date carries a citation.
02
Examine
A separate examiner reads the same source and sets ten practitioner-level questions, each backed by a verbatim quote.
03
Sit
VERDANT answers using only its own notes, closed book. Anything missing from the notes counts as wrong.
04
Restudy
Weak areas feed straight into the next study session. Modules are re-read every 60 days so the notes stay current.
Curriculum
0 of 15 mastered (≥ 85% closed-book)
GHG Protocol Corporate Accounting & Reporting Standard
Syllabus mirrors: GHG Protocol Corporate Standard e-learning; IEMA carbon management modules
Queued
GHG Protocol Scope 2 Guidance
Syllabus mirrors: GHG Protocol Scope 2 training
Queued
GHG Protocol Scope 3 (Corporate Value Chain) Standard
Syllabus mirrors: GHG Protocol Scope 3 training
Queued
UK Government GHG Conversion Factors for Company Reporting (DESNZ)
Syllabus mirrors: SECR / carbon footprinting practitioner courses
Queued
Streamlined Energy and Carbon Reporting (SECR)
Syllabus mirrors: SECR compliance training
Queued
Energy Savings Opportunity Scheme (ESOS) — current phase
Syllabus mirrors: ESOS Lead Assessor preparation
Queued
IFRS S1 & S2 (ISSB) and the UK Sustainability Reporting Standards
Syllabus mirrors: IFRS Sustainability Alliance FSA Credential
Queued
CSRD and the European Sustainability Reporting Standards (ESRS)
Syllabus mirrors: EFRAG / ESRS practitioner courses
Queued
EU Carbon Border Adjustment Mechanism (CBAM)
Syllabus mirrors: CBAM declarant / embedded emissions training
Queued
UK Carbon Border Adjustment Mechanism
Syllabus mirrors: UK CBAM readiness training
Queued
Science Based Targets initiative — Corporate Net-Zero Standard
Syllabus mirrors: SBTi target-setting training
Queued
TCFD Recommendations (and UK mandatory climate disclosure)
Syllabus mirrors: TCFD / climate risk disclosure courses
Queued
GRI Universal Standards
Syllabus mirrors: GRI Certified Sustainability Professional
Queued
UK Green Claims: CMA Green Claims Code, DMCC Act and FCA Anti-Greenwashing Rule
Syllabus mirrors: Green claims compliance training
Queued
PCAF Global GHG Accounting Standard for the Financial Industry
Syllabus mirrors: PCAF financed emissions training
Queued
What this is not
These are not certificates. VERDANT hasn't sat accredited exams, and GreenStack AI doesn't claim the qualifications those courses award. Where a job legally needs an accredited signatory, such as an ESOS Lead Assessor or an ISO 14064 verifier, the work is signed off by a qualified professional from our partner network.
Who steers
VERDANT reads, watches regulators every day, and drafts traceable calculations. Reg Orme decides what goes to clients, takes the meetings, and signs off the work personally. Every number in a VERDANT calculation traces back to an official UK Government conversion factor and is reviewed by a person before a client sees it.