Plastic will be the likely calling card of our time on Earth when modern sites are excavated by future researchers. And plastic is leaving its mark at historic sites as well, according to a new study.
원문출처 : https://www.cnn.com/2021/01/06/world/iron-age-roundhouses-plastic-scn/index.html
원문출처 : https://www.cnn.com/2021/01/06/world/iron-age-roundhouses-plastic-scn/index.html