Extreme weather is causing problems in several parts of the world.

Southern Europe is bracing for a second heatwave in a week, with record temperatures expected to be broken in places like Italy, Greece, and Spain.

Europe Correspondent, Gavin Grey, says one of Spain's Canary islands has been hit hard.

He says in La Palma, troops are evacuating more than four-thousand people and four and a half thousand hectares of woodlands have been destroyed by wildfires.

Almost a third of Americans are under extreme heat advisories, while at least four people have been killed by severe floods in Pennsylvania.

In South Korea, the death toll has risen to at least 37 after flooding across much of the country.

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