Often archaeologists will examine differences in vegetation to gain information on buried sites. Now, some botanists have reversed this and are using archaeological sites to learn about the effect of nutrient differences on plants.
Read the blog post at https://www.botany.one/2022/02/reverse-archaeology-reveals-new-insights-into-global-warming/
Read the original research at https://doi.org/10.1038/s41598-022-05322-8