Spending a mere two hours a week outside is scientifically proven to lower blood pressure, enhance the immune system and reduce anxiety. Yet, for many communities, nature and the countryside are inaccessible with many city-dwellers struggling to find greenery in their local areas. This week's episode is taken from an event we staged in partnership with Selfridges for their Project Earth series. — We’d love to hear your feedback and what you think we should talk about next, who we should have on and what our future debates should be.  Send us an email or voice note with your thoughts to podcasts@intelligencesquared.com or Tweet us @intelligence2.  And if you’d like to support our mission to foster honest debate and compelling conversations, as well as ad-free podcasts, exclusive bonus content, early access and much more, become a supporter of Intelligence Squared today. Just visit intelligencesquared.com/membership to find out more.  Learn more about your ad choices. Visit podcastchoices.com/adchoices