Changes
Every change in a provider's disclosure status is logged here with the date of the update and the source that supports the new status. Updates to figures or sources that don't change a status are in the full changelog.
Timeline
- Started tracking Alibaba (Qwen), Baidu (ERNIE), ByteDance (Doubao), DeepSeek, Tencent (Hunyuan).
Google (Gemini) · Per-Facility Data: Partial → Yes
The 2026 Environmental Report publishes water withdrawal, discharge and consumption for each data center location, plus PUE per facility.
View source →Amazon (AWS) · Water Usage: Partial → Yes
The 2025 AWS Summary reports total AWS data center water withdrawal and global WUE.
View source →Amazon (AWS) · Per-Facility Data: No → Partial
AWS location fact sheets publish water withdrawal, PUE and WUE by location, not by facility.
View source →Meta (LLaMA) · AI-Specific Data: No → Partial
Llama model cards report training GPU hours, power and emissions; no water or inference data.
View source →
- Started tracking Google (Gemini), Microsoft (OpenAI), Amazon (AWS), Meta (LLaMA), Anthropic (Claude), Perplexity, OpenAI (ChatGPT), xAI (Grok), Mistral (Le Chat), Cohere.
By provider
Google (Gemini)
First tracked 2026-03-22 · Last checked 2026-10-30
| Dimension | First tracked | Now |
|---|---|---|
| Water Usage | Yes | Yes |
| Energy Usage | Yes | Yes |
| Per-Facility Data | Partial | Yes |
| AI-Specific Data | Yes | Yes |
| Water Pledge | Yes | Yes |
· Per-Facility Data: Partial → Yes
The 2026 Environmental Report publishes water withdrawal, discharge and consumption for each data center location, plus PUE per facility.
View source →
Microsoft (OpenAI)
First tracked 2026-03-22 · Last checked 2026-10-30
| Dimension | First tracked | Now |
|---|---|---|
| Water Usage | Yes | Yes |
| Energy Usage | Yes | Yes |
| Per-Facility Data | No | No |
| AI-Specific Data | No | No |
| Water Pledge | Yes | Yes |
No status changes since 2026-03-22.
Amazon (AWS)
First tracked 2026-03-22 · Last checked 2026-10-30
| Dimension | First tracked | Now |
|---|---|---|
| Water Usage | Partial | Yes |
| Energy Usage | Partial | Partial |
| Per-Facility Data | No | Partial |
| AI-Specific Data | No | No |
| Water Pledge | Yes | Yes |
· Water Usage: Partial → Yes
The 2025 AWS Summary reports total AWS data center water withdrawal and global WUE.
View source →· Per-Facility Data: No → Partial
AWS location fact sheets publish water withdrawal, PUE and WUE by location, not by facility.
View source →
Meta (LLaMA)
First tracked 2026-03-22 · Last checked 2026-10-30
| Dimension | First tracked | Now |
|---|---|---|
| Water Usage | Yes | Yes |
| Energy Usage | Yes | Yes |
| Per-Facility Data | Yes | Yes |
| AI-Specific Data | No | Partial |
| Water Pledge | Yes | Yes |
· AI-Specific Data: No → Partial
Llama model cards report training GPU hours, power and emissions; no water or inference data.
View source →
Anthropic (Claude)
First tracked 2026-03-22 · Last checked 2026-10-30
| Dimension | First tracked | Now |
|---|---|---|
| Water Usage | No | No |
| Energy Usage | No | No |
| Per-Facility Data | No | No |
| AI-Specific Data | No | No |
| Water Pledge | No | No |
No status changes since 2026-03-22.
Perplexity
First tracked 2026-03-22 · Last checked 2026-10-30
| Dimension | First tracked | Now |
|---|---|---|
| Water Usage | No | No |
| Energy Usage | No | No |
| Per-Facility Data | No | No |
| AI-Specific Data | No | No |
| Water Pledge | No | No |
No status changes since 2026-03-22.
OpenAI (ChatGPT)
First tracked 2026-03-22 · Last checked 2026-10-30
| Dimension | First tracked | Now |
|---|---|---|
| Water Usage | Partial | Partial |
| Energy Usage | Partial | Partial |
| Per-Facility Data | No | No |
| AI-Specific Data | Partial | Partial |
| Water Pledge | Partial | Partial |
No status changes since 2026-03-22.
xAI (Grok)
First tracked 2026-03-22 · Last checked 2026-10-30
| Dimension | First tracked | Now |
|---|---|---|
| Water Usage | No | No |
| Energy Usage | No | No |
| Per-Facility Data | No | No |
| AI-Specific Data | No | No |
| Water Pledge | Partial | Partial |
No status changes since 2026-03-22.
Mistral (Le Chat)
First tracked 2026-03-22 · Last checked 2026-10-30
| Dimension | First tracked | Now |
|---|---|---|
| Water Usage | Yes | Yes |
| Energy Usage | Yes | Yes |
| Per-Facility Data | No | No |
| AI-Specific Data | Yes | Yes |
| Water Pledge | No | No |
No status changes since 2026-03-22.
Cohere
First tracked 2026-03-22 · Last checked 2026-10-30
| Dimension | First tracked | Now |
|---|---|---|
| Water Usage | No | No |
| Energy Usage | No | No |
| Per-Facility Data | No | No |
| AI-Specific Data | No | No |
| Water Pledge | No | No |
No status changes since 2026-03-22.
Alibaba (Qwen)
First tracked 2026-10-31 · Last checked 2026-10-31
| Dimension | First tracked | Now |
|---|---|---|
| Water Usage | Yes | Yes |
| Energy Usage | Yes | Yes |
| Per-Facility Data | No | No |
| AI-Specific Data | No | No |
| Water Pledge | No | No |
No status changes since 2026-10-31.
Baidu (ERNIE)
First tracked 2026-10-31 · Last checked 2026-10-31
| Dimension | First tracked | Now |
|---|---|---|
| Water Usage | Yes | Yes |
| Energy Usage | Yes | Yes |
| Per-Facility Data | No | No |
| AI-Specific Data | No | No |
| Water Pledge | No | No |
No status changes since 2026-10-31.
ByteDance (Doubao)
First tracked 2026-10-31 · Last checked 2026-10-31
| Dimension | First tracked | Now |
|---|---|---|
| Water Usage | No | No |
| Energy Usage | Partial | Partial |
| Per-Facility Data | No | No |
| AI-Specific Data | No | No |
| Water Pledge | No | No |
No status changes since 2026-10-31.
DeepSeek
First tracked 2026-10-31 · Last checked 2026-10-31
| Dimension | First tracked | Now |
|---|---|---|
| Water Usage | No | No |
| Energy Usage | No | No |
| Per-Facility Data | No | No |
| AI-Specific Data | No | No |
| Water Pledge | No | No |
No status changes since 2026-10-31.
Tencent (Hunyuan)
First tracked 2026-10-31 · Last checked 2026-10-31
| Dimension | First tracked | Now |
|---|---|---|
| Water Usage | Yes | Yes |
| Energy Usage | Yes | Yes |
| Per-Facility Data | No | No |
| AI-Specific Data | No | No |
| Water Pledge | Partial | Partial |
No status changes since 2026-10-31.