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Barley and water shortages linked to climate change could limit future whisky production, new study finds

A new study shows the potential impact of climate change on the Scotch whisky industry.

Published: October 24, 2021
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As one of Scotland’s main exports, Scotch whisky is enjoyed the world over.

Now, a new study commissioned by Glengoyne Highland Single Malt Scotch Whisky has revealed that projected temperature increases and changes in rainfall patterns threaten distillery production over the next fifty years.

Climate researchers from University College London found impending heat and drought stress caused by global warming could drastically impact the volume and quality of spring barley in Scotland.

800,000 tonnes are required annually in Scotch Whisky production and a reduction in yield, as seen in 2018, could cost the industry up to £27million a year.

With a decline in summer rainfall of up to 18 per cent and a 2.0˚C annual rise in temperature by 2080, they also found that summer-droughts, which halted production at many distilleries across Islay, Perthshire, and Speyside in 2018, would likely occur with much greater frequency going forward.

Ahead of COP 26 in Scotland, Glengoyne commissioned the report to highlight the pressing need for all industries and individuals to come together to combat climate change.

Of the back of the report, Glengoyne is announcing the launch of a special new release, The Wetlands Single Cask, which recognises the distillery’s ongoing relationship with the Wildfowl and Wetlands Trust (WWT) which began in 2011.

The release commemorates 10-years since the Scottish whisky distillery became the first to adopt a wetlands facility for liquid waste, with a percentage of profits going directly to continue the climate emergency work being done by the conservation charity.

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Wetlands can help drastically slow down climate change, storing twice as much carbon as all the world’s rainforests combined – but they too are under considerable threat from climate change.

As the first Scottish distillery to adopt a wetlands facility for liquid waste in 20115, the distillery and brand will increase their support of WWT’s initiatives as part of a broader partnership that will for the next three years be focused on supporting the protection of Barnacle Geese at Caerlaverock, as well as taking part in WWT’s Blue Recovery which aims to create 100,000 hectares of healthy wetlands across Scotland.

Barbara Turing, brand manager at Glengoyne Highland Single Malt, said: “The threat of climate change is very real, and we all have a role to play in combating its effects.

"At Glengoyne, we still have so much more to do but we are committed to reducing our own impact on the environment and working with the Scotch Whisky Association to achieve their net zero emission target by 2040.

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“We’ve been on an incredible journey over the last ten years – finding ways to use water more efficiently, introducing renewable sources of energy and using a local anaerobic digestor for 100 per cent of our liquid waste.

"Our partnership with the WWT has been at the heart of our sustainability work and we want to continue to support the valuable work they do.

"So, when customers raise a dram of this special release, they’ll know they are supporting the important and necessary work of the charity."

Climate change in the next 50-100 years could also threaten to alter the flavour profile of whisky in Scotland.

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Stages of its production, including malting, fermentation, distillation, and maturation, have all been developed to suit the temperate maritime climate of the area.

Warmer air and water temperatures, the report found, would all have the potential to lead to inefficient cooling in traditional distilleries, creating challenges for conserving the character, consistency, and quality of the liquid.

Carole Roberts, lead author and climate change researcher at University College London, said: “There’s an assumption that Scotland is wet, rainy place with a constant water supply.

"Climate change is changing when and where it rains, and this will create shortages and change the character of the water – effecting our favourite drams – so planning is essential to protect our whisky.”

Professor Mark Maslin, climate change professor at University College London who worked on the report, added: “The work Glengoyne is doing to reduce their carbon emissions and protect whisky production from climate change is essential.

"But the whisky industry is just one fish in a big pond, and we need government support, investment, and infrastructure for all of us to be net zero emissions as soon as possible.”

View the full report here.

Known for cake making, experimental jam recipes, Champagne and gin drinking (and the inability to cook Gnocchi), Rosalind writes for The Scotsman on all things food and drink related as well as hosting Scran, The Scotsman's food and drink podcast.

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