Food loss and waste accounts fr 8-10% of global greenhouse gas emissions. Refrigeration to cool food uses about 20% of global electricity. Today’s vapor-compression technology depends on refrigerants. A new eco-friendly cooling device can reach temperatures as low as -12℃ without using greenhouse gas refrigerants.
hkust.edu.hk/news/hkust-develops-worlds-first-sub-zero-celsius-elastocaloric-green-freezer-reshaping-freezing