We explore the intricacies of various methodologies for sustainable finance, delving into the challenges of standardization, while highlighting progress made by standards such as the LMA Green Loan Principles, Equator Principles, ICC whitepaper, and IFC performance standards. Could we consider proposing a carbon intensity metric for project evaluation? We look at the importance of balancing the complexity of ESG requirements with their impact on projects. How can we advocate for flexibility within standardized frameworks? How can we better address the need for clarity and accessibility in ESG guidelines to avoid hindering green deals in different markets?