Trillion Dollar fix with Rowan Hooper (226)

<p><span style="font-size: 10pt;">Imagine you have a trillion dollars to solve some really big problems. Things like climate change, disease and poverty. Dr Karl meets Rowan Hooper from the New Scientist, who has written about the economics of giant projects. They are more affordable,  some pay for themselves and some become more expensive the longer we do nothing.</span></p> <p><span style="font-size: 10pt;"><a title="@rowhoop" href= "http:twitter.com/rowhoop" target="_blank" rel= "noopener">@rowhoop</a></span></p> <p><span style="font-size: 10pt;"><a href= "https://drkarl.com">drkarl.com</a></span></p>