Monthly impact report
December 2025
Fernhollow Studio · 24 people · all figures are estimates in tonnes CO₂e
This month
14.9 t
Same month last year
15.5 t
Change
↓ 4.1%
2025 to date
161.7 t
Category trend, last 12 months
| Jan 2025 | 15.1 t |
|---|---|
| Feb 2025 | 14.7 t |
| Mar 2025 | 15.5 t |
| Apr 2025 | 13.0 t |
| May 2025 | 12.8 t |
| Jun 2025 | 14.0 t |
| Jul 2025 | 11.9 t |
| Aug 2025 | 10.4 t |
| Sept 2025 | 12.5 t |
| Oct 2025 | 14.4 t |
| Nov 2025 | 12.6 t |
| Dec 2025 | 14.9 t |
| Jan 2025 | 15.1 t |
|---|---|
| Feb 2025 | 14.7 t |
| Mar 2025 | 15.5 t |
| Apr 2025 | 13.0 t |
| May 2025 | 12.8 t |
| Jun 2025 | 14.0 t |
| Jul 2025 | 11.9 t |
| Aug 2025 | 10.4 t |
| Sept 2025 | 12.5 t |
| Oct 2025 | 14.4 t |
| Nov 2025 | 12.6 t |
| Dec 2025 | 14.9 t |
By category
| Category | Tonnes | vs last year |
|---|---|---|
| Office energy | 4.65 | ↓ 5% |
| Business travel | 4.80 | ↓ 9% |
| Commuting | 2.61 | ↓ 7% |
| Purchases | 2.79 | ↑ 10% |
What moved the numbers
- Business travel 9% lower. Rail-first travel policy for trips under six hours.
- Commuting 7% lower. Cycle-to-work scheme and two remote days a week.
- Office energy 5% lower. Studio heating schedule trimmed to occupied hours.
Retirements
8.0 t retired this month, after the reductions above.