Letting students swim through coral reefs to experience how acidic water threatens their survival makes global warming "real," a study found.<br />Using virtual reality to depict how reefs go from being colourful with an abundance of life to a desolate underwater waste lands brings home the impact of global warming.<br /><br />Subscribe to our channel to be the first to see our viral, breaking news videos. Twitter.com/swns Instagram.com/swns