Scientists see a La Niña coming. What does that mean for the dry American south-west?

The weather system could intensify the drought much of the region is already in, including higher wildfire risks and water shortages

The wet winter the American south-west has hoped for as it battles extreme drought and heat is increasingly unlikely to materialize as scientists now predict that a phenomenon known as La Nina will develop for the second year in a row.

The weather system could intensify the worst effects of the drought that much of the region already finds itself in, including higher wildfire risks and water shortages through 2022.