Historic high temperatures around the world experts warn more to come | ITV News

David Harper investigates why many parts of the world are experiencing crippling temperatures. • Subscribe to ITV News on YouTube: bit.ly/2lOHmNj • Get breaking news and more stories at www.itv.com/news Follow ITV News on Facebook: www.facebook.com/itvnews/ Follow ITV News on Twitter: twitter.com/itvnews Follow ITV News on Instagram: www.instagram.com/itvnews/

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