09:05 Triclosan

Should Triclosan, an anti-bacterial chemical used in toothpaste and hand washes, be banned here, and at what cost? Green MP Catherine Delahunty has been told there are grounds for reassessment, but has to pay $50,000 to the Environmental Protection Agency to do so.

09:20 Raewyn Peart, author of The Story of the Hauraki Gulf

Concerns about the decline of the Hauraki Gulf have prompted a book looking at the unique marine space's history in the hope people will be prompted into protecting the area. Raewyn Peart's grown up on the Gulf and her passion to keep it healthy and protected for future generations has led to her book The Story of the Hauraki Gulf. She's joins Kathryn to talk about the issues facing the vast marine area from our Auckland studio.

09:45 US Correspondent Susan Milligan

Susan Milligan looks ahead to the first Clinton-Trump TV debate.

10:05 Futurist, author and computer scientist Ramez Naam

Ramez Naam

Ramez Naam Photo: Supplied

Kathryn Ryan speaks to Ramez Naam, an award-winning author, futurist and computer scientist who contemplates a world where humans and our use of technology are significantly enhanced. His fiction and non-fiction writing explores the impact of technology for enhancing  humans and how it can change the world. He's coming to the Singularity U New Zealand Summit in Christchurch in November to talk about energy and industrial advances.

10:35 Book review - The Atomic Weight of Love by Elizabeth Church

Reviewed by Jenna Todd, published by HarperCollins.

10:45 The Reading

11:05 Business commentator Rod Oram

Rod Oram on Fonterra's results, in particular its dearth of information on its crucially important investments in China. And the travails of Veritas, the company that owns the Mad Butcher and Nosh chains.

11:30 Five generations of fruit farming in Central Otago

The Hinton family has diversified their agricultural and horticultural operation on land that's been in the family since 1910. Their Central Otago orchard produces a variety of stonefruit, and over the years a dairy farm and a vineyard has been added to the portfolio. Nigel Hinton and his son Howie from Earnscleugh, on their growing business.

11:45 Media commentator Gavin Ellis

Media matters with Gavin Ellis including a look at the changes to NZ on Air funding in the changed media landscape.