This week on Earth Beat... due to climate change, exotic crops are finding their way to colder countries, consumers are digging for cheaper fresh food at a Dutch farm, and we look at laser techniques that enable us to digitally record historic sites for later generations.

Listen to the programme in full:

MAPPING AS PRESERVATION

Peering into the past
We head to the north east of Scotland and explore the stone age village of Skara Brae. Over 5000 years old, the site reveals an amazing preserved slice of Neolithic life. We meet Ann Marwick who’s charged with the task of keeping it intact, an increasingly difficult job as it battles rising tides and erosion.

Listen to the interview from the Scottish coast

Watch a short video about Skara Brae

Listen to the interview

Counting carbon from on high
Greg Asner is a tropical forest ecologist who has worked out how to map the rainforest. His new technique, over a decade of work, allows countries to measure the biomass of their forests, which allows them to measure their green spaces quantifiably. This can catch illegal logging but also may allow countries to earn cash for keeping their carbon assets.

Listen to the interview

EATING GREEN

Communal ovens
Public parks in Toronto have seen a surge of wood-fired bake ovens in recent years. They’re communal, open to anyone who wants to use them, and have changed the lives of the people in the surrounding neighbourhoods. Earth Beat’s correspondent Naheed Mustafa goes to one to talk to its users. Read more about the Dufferin park ovens here.

Listen to the report

Urban wines
Local wine is hard to come by for Londoners, but now there’s Chateau Tooting, made by the Urban Wine Company using grapes found in backyards across the city.
Listen to the report by Johnny Hogg

Exotic walnuts hot in temperate climate
Walnuts used to grow exclusively in warm climates. But as winters in Western Europe grow milder, even the most exotic strains do really well there. Earth Beat speaks with Ton Friesen, who runs a walnut nursery in The Netherlands, about the ever-increasing size of his crops.
Listen to the report from Nunspeet, the Netherlands

UK ‘Climate Change Farm’ generates special fruits
Marc Diacono grows Mediterranean foods like olives, apricots, persimmons, almonds and even hot peppers. He’s not growing these crops on the Mediterranean – but rather on his Climate Change farm in Devon, in the South of England.

Listen to the report from Devon, England

Watch a video of Marc talking about his farm

Listen to the report from a farm near Lelystad, the Netherlands

NEXT WEEK ON EARTH BEAT
What if there wasn’t enough rain in your part of the world, but you had the technology to change that? Fixing the sky – the possibilities and perils of geo-engineering.