Food loss and waste (FLW) contribute significantly to
the global
food system’s economic and environmental burdens, including
substantial greenhouse gas (GHG) emissions, resource depletion, and
waste management challenges. In alignment with the European Commission’s
sustainability objectives and U.N. Sustainable Development Goal 12.3,
this study explores the potential energy and environmental footprint
savings achievable by halving FLW in Europe by 2030. Using a multiregional
input–output model, we estimated the total global energy and
environmental footprint savings across all stages of the food supply
chain, considering industry-specific FLW rates and proportion weights.
The findings reveal substantial environmental savings across Europe,
with aggregate savings potentially reaching 51 Mt CO2e
(0.09 t CO2e/p), 4,620 Mm3 (8 m3/p)
of blue water, 106,446 km2 (179 m2/p) of cropland,
55,523 km2 (93 m2/p) of grassland, and 0.47
EJ (0.54 TJ/p) of energy. The greatest potential for savings was found
in Western Europe, specifically in France, Germany, Belgium, and The
Netherlands. However, countries with a lower per capita GDP, such
as Greece, Croatia, Bulgaria, and Romania, also demonstrate significant
per capita savings potential, indicating that wealth does not necessarily
correlate with higher environmental savings. Agricultural production
emerged as the stage with the highest footprint reduction potential
for GHG and resource footprints across Europe, while the foodservice
and institutional stages offer the greatest energy-saving potential.
Geographical disparities underscore the need for region-specific policies.
These results challenge the wealth-sustainability correlation and
advocate for adaptable policies that transcend national wealth and
accommodate regional disparities, underlining the pivotal roles of
the agricultural production and consumption stages in footprint savings.