Depths of lakes that hold about 90% of US’s freshwater spiking to record levels, from 14in to nearly 3ft above long-term averagesThis summer, as rain relentlessly poured down on the Great Lakes region, Detroit declared a rare state of emergency. The swollen Detroit River had spilled into the low-lying Jefferson...

Galicia has agreed to a cull of the creatures, which are turning up in unusually large numbers and feasting on the region’s key exportGalicia, in north-west Spain, has declared war on an apparently inoffensive creature that is putting livelihoods under threat.The region’s shellfish farmers say that an unusually large population...