Keeping food fresh without refrigeration is near impossible in the scorching climate of sub-Saharan Africa. But it's hard to power fridges in a region where almost 600 million people live off the grid.
원문출처 : https://www.cnn.com/2020/09/09/business/solar-fridge-youmma-africa-spc-intl/index.html
원문출처 : https://www.cnn.com/2020/09/09/business/solar-fridge-youmma-africa-spc-intl/index.html