Almost 12 million people in the UK are vulnerable to future heatwaves caused by global warming, campaigners say.

Flooding and heatwaves, made more likely by climate change, are putting the health of millions of people at risk, with the elderly and those with underlying health conditions such as heart disease particularly vulnerable.

SUBSCRIBE to our YouTube channel for more videos: http://www.youtube.com/skynews

Follow us on Twitter: https://twitter.com/skynews

Like us on Facebook: https://www.facebook.com/skynews

Follow us on Instagram: https://www.instagram.com/skynews

For more content go to http://news.sky.com and download our apps:

Apple: https://itunes.apple.com/gb/app/sky-news/id316391924?mt=8

Android https://play.google.com/store/apps/details?id=com.bskyb.skynews.android&hl=en_GB

Sky News videos are now available in Spanish here/Los video de Sky News están disponibles en español aquí https://www.youtube.com/channel/skynewsespanol