Scotland

The climate in Scotland has already changed, with further changes projected. There will be further increases in mean temperatures in all regions of Scotland, and in all seasons, including milder winters with fewer days of ground frost and lying snow. Rainfall patterns will also change, with drier summers and wetter autumns and winters. An increase in the frequency and intensity of extreme events, such as high winds, storms, flooding, heat waves and droughts is also likely.

Climate change impacts

These changes in climate will have a range of impacts on forestry in Scotland.  These impacts should not be seen in isolation; any number or combination of these impacts may be experienced. Impacts include:

• Increased risk of wind and storm damage, and occurrence of landslides. Any effects on forestry may also impact on society (e.g. transport and power infrastructure) and environment (e.g. downstream flooding).
• Increased risk of flooding, water logging and soil erosion.
• Increase in wildfire risk.
• Increased drought risk in eastern Scotland, and particularly in the south east.
• Increased risk of early (autumn) and late (spring) frost damage to lammas growth and spring bud burst, reducing timber quality.
• Mild winters may also mean trees do not enter full dormancy, leading to damage if combined with extreme cold periods.
• Adverse impacts from climate change can increase the susceptibility of forests to insect pests or pathogen damage. The changing climate will also allow the range and population of some pests and pathogens to expand, resulting in
• Increased risk of damage or tree mortality from new and existing pests and diseases – this risk is higher for areas with limited tree species and provenance diversity.
• Wider impacts on Scotland’s forestry supply chain .
• Longer, warmer growing seasons could increase tree growth rates on favourable sites where water and nutrient availability are not limiting growth. If timber production is the objective, increased volume production may mean rotation lengths need to be altered.
• South and east Scotland will be more favourable for growing quality broadleaved species on fertile soils.

The Third UK Climate Change Risk Assessment (CCRA3) 2022 includes a Regional Summary of the Evidence-Report-for Scotland and a UK sector briefing for land use, land-use change and forestry (LULUCF).

Scottish Forestry are the Scottish Government agency responsible for forestry policy, support (including grants) and regulations.

Forestry and Land Scotland (FLS) manages the public forest estate in Scotland. The FLS Climate Change Plan describes how they are working to mitigate the effects of the Climate Emergency and are adapting to anticipated climate change and pest and disease threat.

Scotland’s Forestry Strategy 2019-2029 outlines the visions and actions to expand, protect and enhance Scotland’s forests and woodlands. The Implementation Plan 2020-2022 supports the delivery of the Strategy.

The Scottish Government’s climate change policies for adaptation and mitigation are governed by the Climate Change (Scotland) Act 2009 and the amended Climate Change (Emissions Reduction Targets) (Scotland) Act 2019, which increases the ambition of Scotland’s emissions reduction targets to net zero by 2045.

The Scottish Government’s five-year programme of policies and proposals for climate change adaptation are set out in Climate Ready Scotland: The Second Scottish Climate Change Adaptation Programme (SCCAP2) 2019-2024.

The Scottish Government presents its plans to meet emissions reduction targets in Securing a green recovery on a path to net zero: Climate Change Plan 2018-2032 update (CCPu) which was updated in 2020 to meet the new and more ambitious targets.