Why are biofuels not considered carbon neutral, with GWPtotal = 0?

EPDs are based on Life Cycle Assessments (LCA), which include emissions from the entire life cycle of the fuel.

EPDs are based on Life Cycle Assessments (LCA), which include emissions from the entire life cycle of the fuel. For both fossil fuels, such as diesel, and biofuels like HVO biodiesel, indirect emissions from production and distribution are included in the emission factors. Other accounting systems for Greenhouse gases, such as the GHG-protocol, often only include the direct emissions

Understanding Emission Factors. Environmental Product Declaration (EPD) vs Greenhouse Gas (GHG) Protocol.

Utslippsfaktorer i klimagassregnskap for Norge

GHG Emission Factors Hub | US EPA

Greenhouse gas reporting: conversion factors 2024