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: http://bit.ly/2lOHmNj
• Get breaking news and more stories at http://www.itv.com/news

Follow ITV News on Facebook: https://www.facebook.com/itvnews/
Follow ITV News on Twitter: https://twitter.com/itvnews
Follow ITV News on Instagram: https://www.instagram.com/itvnews/