New research from the University of South Australia (UniSA) warns that stronger La Niña weather cycles are creating new risks for homeowners, builders and infrastructure planners. Published in the Journal of Environmental Management, the study shows that prolonged rainfall during La Niña is intensifying shrink–swell movements in expansive clay soils. These soils expand when saturated and contract during dry spells, destabilising house foundations, cracking pipelines and damaging pavements...
