As sea levels rise as a result of climate change, more and more places around the world are struggling with seawater inundation—where salt water from the sea is flooding further inland and destroying crops which can't cope with the increased salinity.
source https://www.lifetechnology.com/blogs/life-technology-science-news/genetically-modified-rice-could-be-key-to-tackling-food-shortages-caused-by-climate-change