Home / Environment / Butterflies Signal Climate Change Threat in Wales
Butterflies Signal Climate Change Threat in Wales
25 Mar
Summary
- Butterflies may indicate climate change impacts on peatlands.
- A two-year study in Wales monitors endangered large heath butterflies.
- Peat bogs store carbon; their drying releases greenhouse gases.

A conservationist in Wales is exploring the potential for butterflies to act as a "canary in the coal mine" for climate change impacts. Georgina Paul is halfway through a two-year study in the region's wetlands, focusing on the endangered large heath butterfly. This research aims to determine if the butterfly can serve as an indicator of peatland health.
Peat bogs are critical for storing carbon when kept wet. However, increasing temperatures can cause them to dry out, leading to the release of greenhouse gases. Paul has been monitoring large heath populations across extensive peatland areas since the project commenced last year. The study, scheduled to conclude by May 2027, encompasses all protected sites where this butterfly species is found.