Summary:
- New GPS data indicates that sea levels in Southern England are rising more rapidly due to the phenomenon of post-glacial isostatic adjustment, where the Earth's crust is slowly rebounding following the retreat of ancient ice sheets.
- As the northern landmass of Scotland rises by approximately one millimeter per year, the southern portion of the British Isles is experiencing a compensatory sinking effect, which exacerbates the relative rate of sea-level rise in those regions.