Wine producers say a warming planet can be detected in the glass.

The owners of long-established vineyards are having to adapt their methods to preserve the taste of their wines, but experts say change is inevitable and already tangible.

Ruth Alexander finds out how climate change is challenging some of the world’s most famous wine regions, while providing opportunities for new producers emerging in the most unlikely places.

If you would like to get in touch with the show, please email: thefoodchain@bbc.co.uk

(Picture: woman holding a glass of wine. Credit: Getty/BBC)

Contributors:

Sally Evans, Chateau George 7, Bordeaux, France

Dr Greg Jones, wine climatologist and CEO of Abacela vineyards and winery in Oregon, United States

Bjorn Bergum, Slinde Vineyard, Sognefjord, Norway