(picture thanks to Getty Images)
It’s not often that Bristol is mentioned in the national news – even rarer that it’s the top story. But that was what happened recently when teenage climate campaigner Greta Thunberg visited the city to address an audience estimated to be around 20000 people followed by a march around the centre of town.
Her message that we need to look after our planet for the benefit of future generations is compelling but what can wine lovers and those in the wine industry do to support those aims? For the answer, we need to look at the role of the harmful gas, carbon dioxide (CO2) in the production and distribution process.
At the very beginning, there’s a positive effect. Vines, like all woody plants, absorb CO2 from the atmosphere and use it in the photosynthesis process which drives the plant’s growth. Sadly, it’s mainly downhill from then on, particularly once the grapes are harvested and arrive in the winery.
There, fermentation converts the sugar in the ripe grapes into alcohol, but this chemical reaction produces CO2 as a by-product. Fine if you’re making sparkling wine – the CO2 is captured in the bottles to make the fizz; not so good if you want still wine as then the CO2 is simply released into the atmosphere. Anyone who has been in a winery while the winemaking is ongoing will, hopefully, have been warned of this as high levels of CO2 in a confined space can be fatal.
And the negatives don’t stop there: I’ve blogged before about my hatred of over-heavy wine bottles, but there’s no doubt that they need more power to move them to the customer – and what results? More CO2!
So, what can we do (apart from stopping drinking wine, of course, which isn’t really an option for me!)? Encourage producers to use lighter bottles or other packaging materials, perhaps, or even dispense with the insistence that Quality wines have to be bottled at source; shipping to the UK in bulk and bottling here has less impact. Or, most pleasurably of all, drink more of your local sparkling wine.