Southwest Airlines upcycles 80,000 leather seats into bags, shoes and balls

From leather seats to tote bags and fish skin into luxury shoes, businesses are creating new value from waste streams

Will eating organic food make you healthier?

A major new study has found that organic foods contain higher levels of antioxidants and less harmful chemicals than conventionally farmed produce. But does that mean they are better for you? With your help, Karl Mathiesen investigates.

Let us know your thoughts. Post in the comments below, email karl.mathiesen.freelance@theguardian.com or tweet @karlmathiesen

Parks look for new ways to meet costs – with trees, bees and subscription fees

With warnings that many of Britain’s parks are on a financial precipice, some are looking at novel ways to meet running costs

Men’s fashion: how to look good on a bike

The Tour de France hits Britain this week, but which kind of sartorial cyclist are you?

Crown Estate, ranging from retail parks to windfarms, valued at record £10bn

Queen benefits as commercial property empire raises more than £267m in profits for Treasury and monarch