A heat dome over the US south-west has translated into extreme heat warnings from coast to coast, which continue to affect more than 110 million people.

Temperature records could be broken in as many as 38 cities.

It comes as soaring temperatures are also hitting southern Europe and Canada is battling the worst season of wildfires in its history.

Please subscribe here: http://bit.ly/1rbfUog

#Heatwave #Climate #BBCNews