Dogs have always been raised on a meat rich diet, but does that need to change due to the large Carbon footprint that this creates? The pet food industry in the US is worth over $42 billions a year and is expected to grow to $44billion by the end of 2021.  In NZ we spend in excess of $200 million dollars a year, that's 43,000 tonnes on our dog food and treats. And we spend $275 million dollars on our cat food and treats which is a staggering 30,000 tonnes a year.   Dogs have always been raised on a meat rich diet, but does that need to change due to the large Carbon footprint that this creates? The pet food industry in the US is worth over $42 billions a year and is expected to grow to $44billion by the end of 2021.  In NZ we spend in excess of $200 million dollars a year, that's 43,000 tonnes on our dog food and treats. And we spend $275 million dollars on our cat food and treats which is a staggering 30,000 tonnes a year.   The Sunday Cafe is hosted and produced by Mel Homer, the technical editor is Geoff Rooke.