Climate change adaptation in Vietnam's Mekong Delta seems to focus on hard engineering like dykes and sluice gates, but I wonder if that's enough when saltwater intrusion already reached 50-60 km inland in 2020. My uncle's orchard near Ben Tre has suffered from saline soil, and local authorities keep building more barriers. Should we instead invest more in shifting to salt-tolerant crops and changing livelihoods, or is continued infrastructural defense still the best bet for the region's future?