Principles of Sustainability and ESG: Tools and Career ESG Data Sources and Software Bloomberg Refinitiv Workiva

ESG Data Sources & Software – Bloomberg, Refinitiv, Workiva
A practical, reporting?ready study guide for finance, ops, compliance pros and students.

What This Is

ESG data platforms (Bloomberg, Refinitiv) and reporting?automation tools (Workiva) are the digital “back?office” that turn raw sustainability information into the numbers, narratives, and filings regulators and investors demand. A real?world example: Caterpillar pulls electricity?use data from Bloomberg’s?ESG?API, calculates its Scope?2 emissions, then uploads the results into Workiva’s cloud?based filing engine to produce a TCFD?aligned climate?risk disclosure for its 2024 Form?10?K.

Key Terms & Standards

• GHG Protocol – World Resources Institute & WRI standard for measuring greenhouse?gas emissions; defines Scope?1?3. (Issued 2001, latest version 2021).
• TCFD – Task Force on Climate?Related Financial Disclosures; a voluntary framework for climate?risk reporting that drives the “four?pillars” (Governance, Strategy, Risk Management, Metrics & Targets). (Published 2017, becoming mandatory under UK?SFDR?2025).
• CSRD – EU Corporate Sustainability Reporting Directive; requires double?materiality reporting and alignment with ISSB/ESRS. (EU Commission, effective 1?Jan?2024 for FY?2024).
• ISSB (IFRS?S2 & S4) – International Sustainability Standards Board; global baseline for climate?related disclosures (IFRS?S2 – Climate, effective 1?Jan?2025).
• Double Materiality – Concept that companies must disclose both (a) how ESG issues affect their financial performance and (b) how the company impacts the environment & society. (CSRD, EU).
• Bloomberg ESG Data Service (BES) – Subscription?based API delivering company?level carbon intensity, renewable?energy use, and controversy scores. (Bloomberg, updated quarterly).
• Refinitiv ESG Scores – ESG data set covering 13?k metrics (environmental, social, governance) with a “Carbon?Intensity” factor that can be used for Scope?2 market?based calculations. (Refinitiv, refreshed monthly).
• Workiva Wdesk – Cloud platform that links data, controls, and narrative; supports XBRL filing, ESG reporting, and audit trails. (Workiva, version?2024.2).
• Spend?Based Scope?3 Method – Calculates upstream emissions using supplier?level emission factors multiplied by spend dollars (GHG?Protocol “Category?1–3”).
• Location?Based vs. Market?Based Scope?2 – Two calculation approaches: (i) emissions based on the grid mix where electricity is consumed; (ii) emissions based on contractual renewable?energy purchases. (GHG?Protocol, 2021).

Step?by?Step / Process Flow

Goal: Produce a TCFD?aligned climate?risk disclosure for FY?2024 using Bloomberg, Refinitiv, and Workiva.

1. Define Scope & Materiality
2. Run a materiality matrix in Workiva (drag?and?drop) using ESG risk factors from Bloomberg’s “Climate?Risk?Dashboard” and Refinitiv’s “Sector?Specific?Heat?Map”.
3. Collect Raw ESG Data
4. Pull Scope?1 & 2 activity data (fuel use, electricity bills) from internal systems.
5. Query Bloomberg’s Carbon?Intensity API for grid emission factors (location?based) and Refinitiv’s Renewable?Energy Purchase Agreements (REPA) data for market?based factors.
6. Calculate Scope?2 Emissions
7. Location?Based:?Emissions?=?Electricity?(kWh)?×?Grid?EF (kg?CO?e/kWh).
8. Market?Based:?Emissions?=?Electricity?(kWh)?×?REPA?EF (kg?CO?e/kWh).
9. Record both numbers in Workiva’s Emission?Tracking Worksheet (auto?populates the “Scope?2 – location? vs market?based” table).
10. Estimate Scope?3 (Spend?Based)
11. Export supplier spend data (SAP/Oracle)-Workiva.
12. Map each spend line to Refinitiv’s Sector?Specific Emission Factors (e.g.,?$1?M?spent on “Steel”?×?0.85?t?CO?e/$?M).
13. Sum across categories to produce a Scope?3 Category?1–3 total.
14. Validate & Reconcile
15. Use Workiva’s Data?Integrity Rules (e.g., “Scope?2 market?based-Scope?2 location?based”) to flag anomalies.
16. Cross?check Bloomberg’s Company?Level Carbon Footprint against internal calculations; resolve differences before sign?off.
17. Generate Disclosure & File
18. Populate TCFD “Metrics & Targets” section in Workiva; auto?convert to XBRL using the ISSB?S2 taxonomy.
19. Submit the final filing to the SEC (Form?10?K) and, if EU?based, to the national regulator under CSRD.

Common Mistakes

ESG Interview / Exam Tips

1. Differentiate Data Providers: Be ready to explain that Bloomberg focuses on market?price?linked ESG metrics (e.g., carbon?intensity), while Refinitiv offers deeper supply?chain and sector?specific emission factors.
2. Scope?2 Calculation Nuance: Interviewers love the “location? vs market?based” distinction—state the formulas and why both are required for TCFD and CSRD.
3. Workiva’s Role: Emphasize that Workiva is not a data source but a control?and?reporting hub that enforces data integrity, audit trails, and XBRL filing.
4. Regulatory Alignment: Know the timeline: SEC?S?4 (2024)-ISSB?S2 (2025)-EU?CSRD (2024?2028). Show how your workflow satisfies each.

Quick Check Questions

1. Scenario: A U.S. bank must disclose climate?related financial risk for its loan portfolio by Dec?31?2024. Which framework should it primarily follow?
   Answer: TCFD – because the SEC’s Climate?Related Disclosure rule (effective 2024) adopts the TCFD’s four?pillar structure for financial?sector reporting.

2. Scenario: A manufacturer uses Bloomberg’s “Carbon?Intensity” metric to claim a 10?% reduction in emissions. What additional step is required for a CSRD?compliant report?
   Answer: Convert the intensity reduction into absolute Scope?1?3 emission numbers and provide the underlying activity data (energy use, spend) to satisfy double?materiality verification.

3. Scenario: Your team has two Scope?2 numbers: 120?kt?CO?e (location?based) and 95?kt?CO?e (market?based). Which number should be used for the “Climate?Related Targets” KPI?
   Answer: Both – report the market?based figure as the target?achievement metric (it reflects renewable?energy purchases) while also disclosing the location?based baseline for context.

Last?Minute Cram Sheet (10 One?Liners)

1. TCFD = Task Force on Climate?Related Financial Disclosures – a framework, not a standard; many regulators adopt it verbatim.
2. GHG?Protocol defines Scope?1 (direct), Scope?2 (energy), Scope?3 (value?chain) emissions.
3. Double Materiality = financial?impact?+?environment?societal impact (required by EU?CSRD).
4. Bloomberg ESG Data Service updates quarterly; Refinitiv refreshes monthly.
5. Location?Based Scope?2 uses the grid emission factor; Market?Based uses contractual renewable?energy purchases.
6. ISSB?S2 (Climate) becomes mandatory for FY?2025 filings (global).
7. Workiva Wdesk auto?generates XBRL tags from the ISSB taxonomy.
8. Spend?Based Scope?3 =? (Spend?×?Sector?Emission?Factor) – the quickest way to estimate upstream emissions.
9. SEC?S?4 (2024) requires TCFD?aligned climate risk disclosures for public companies.
10. Refinitiv ESG Scores are built on 13?k metrics; the Carbon?Intensity factor is expressed as kg?CO?e per $?revenue.

Use this guide to jump?start your ESG data?collection, calculation, and reporting workflow—whether you’re building a climate?risk disclosure for a Fortune?500 manufacturer or preparing for a compliance interview.