MotherTree Limited’s Bank League Table is a concise report ranking major UK banks by the carbon emissions linked to customer deposits (e.g., £12,500 in a current account at Barclays equates to ~2.9 tCO2/year) and offers a Money Carbon Calculator and links to greener banks and pension providers; included in Part 2, ‘The Purposeful Investment Landscape’, Chapter ‘Traditional Wealth Management’ and the sub-chapter ‘A Green Look at How They Work’, this reference supplies transparent, actionable data that illustrates how everyday banking and pension choices finance fossil fuels, supports the book’s advice to question banks’ net‑zero and fossil‑fuel policies, and empowers readers to switch accounts or providers to align savings with their climate values.