> Coastal cities are unlikely to be flooded in our lifetimes. We're looking at about 1m [1] sea level rise in 100 years, or 50cm in our lifetime. Thats true, b

> Coastal cities are unlikely to be flooded in our lifetimes. We're looking at about 1m [1] sea level rise in 100 years, or 50cm in our lifetime. Thats true, but what most people don't know is that sea level rise don't necessarily mean catastrophic floods. A far bigger problem -- in our lifetime -- is aquifer salination, that is the intrusion of saltwater into coastal freshwater aquifers. This is already happening, in the Nile-valley, Benin and Cyprus but also in Louisiana and California. When the salinity of coastal Freshwater aquifers reaches a critical level, growing crops in coastal areas can be all but impossible.