Monthly impact report
September 2026
Fernhollow Studio · 24 people · all figures are estimates in tonnes CO₂e
This month
11.5 t
Same month last year
12.5 t
Change
↓ 7.5%
2026 to date
112.2 t
Category trend, last 12 months
| Oct 2025 | 14.4 t |
|---|---|
| Nov 2025 | 12.6 t |
| Dec 2025 | 14.9 t |
| Jan 2026 | 13.9 t |
| Feb 2026 | 13.1 t |
| Mar 2026 | 14.3 t |
| Apr 2026 | 12.1 t |
| May 2026 | 12.5 t |
| Jun 2026 | 13.5 t |
| Jul 2026 | 11.5 t |
| Aug 2026 | 10.0 t |
| Sept 2026 | 11.5 t |
| Oct 2025 | 14.4 t |
|---|---|
| Nov 2025 | 12.6 t |
| Dec 2025 | 14.9 t |
| Jan 2026 | 13.9 t |
| Feb 2026 | 13.1 t |
| Mar 2026 | 14.3 t |
| Apr 2026 | 12.1 t |
| May 2026 | 12.5 t |
| Jun 2026 | 13.5 t |
| Jul 2026 | 11.5 t |
| Aug 2026 | 10.0 t |
| Sept 2026 | 11.5 t |
By category
| Category | Tonnes | vs last year |
|---|---|---|
| Office energy | 3.13 | ↓ 4% |
| Business travel | 3.88 | ↓ 14% |
| Commuting | 2.37 | ↓ 13% |
| Purchases | 2.16 | ↑ 9% |
What moved the numbers
- Business travel 14% lower. Rail-first travel policy for trips under six hours.
- Commuting 13% lower. Cycle-to-work scheme and two remote days a week.
- Office energy 4% lower. Studio heating schedule trimmed to occupied hours.
Retirements
4.1 t retired this month, after the reductions above.
- CNP-RET-2026-00417 · 25 September 2026 · 4.1 t · Terra Preta Biochar Works (removal)