Construction / Real Estate

Digital Realty sustainability score: 41/100

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About Digital Realty

Digital Realty owns, develops and operates data centres and sells colocation and interconnection services. Almost all of its US$6.11B revenue in 2025 came from rental and other services.

More about Digital Realty

Digital Realty Trust, Inc. was incorporated in Maryland in 2004 and operates as a real estate investment trust for US tax purposes. It had 4,282 full-time employees at 31 December 2025.

Founded 2004Head office Dallas, United StatesStaff ~4,282 full-time (year-end, 31 December 2025)Revenue ~US$6.11B (2025)Website ↗

Our verdict

Digital Realty reported 1,935,624 tCO2e across Scopes 1, 2 and 3 in 2025, down from 2,849,402 t in 2023, which its report puts mainly down to renewable procurement. Over that period Scope 3 rose 14% and electricity use 15.8%. It claims 93% renewable electricity. A report chart shows retail renewable supply 28%, green tariffs 23%, customer-sourced renewables 15%, PPAs 13% and unbundled certificates 11%; the share of retail supply and tariffs resting on certificates is not given. SBTi lists Scope 1 and 2 down 42% by 2030, with no net-zero target in that entry. A French prefect issued a formal notice in 2023 over refrigerant leaks at its Interxion France site in Marseille.

Digital Realty scores 41/100 (Below expectations) on SINK's independent climate assessment, scored from public data only. Scores are free. Companies can never pay for anything about their own score. Last verified November 2026.

That places Digital Realty joint 395th of 994 companies scored, and 20th of 39 in Construction / Real Estate.

The ten questions

What is Digital Realty doing well, and where does it fall short?

Strongest on Carbon Footprint: Operations and Carbon Footprint: Supply Chain (8/10, 8/10). Weakest on Emissions Trajectory and Nature & Biodiversity Impact (3/10, 3/10).

What's missing

Where Digital Realty lost points

For each question that lost points, the evidence our public rubric looks for that we didn't find.

  • Emissions from its own operations8/10No verified figures published with their method and a falling trend.
  • Emissions from its supply chain8/10Its Scope 3 emissions aren't fully verified or falling year on year.
  • Whether its emissions are falling3/10No evidence its emissions are falling, not even from energy bills or mileage.
  • How clean its energy is6/10Less than 90% of its energy shown to be renewable.
  • Its effect on nature3/10No assessment of its effect on nature, and no basic environmental policy.
  • How it uses materials and handles waste4/10No measurable waste or recycling targets reported publicly.
  • Its effect on water5/10No measured water footprint with reduction targets.
  • Its climate targets7/10Its targets aren't validated by the Science Based Targets initiative.
  • How openly it reports7/10No annual impact report, or no pay linked to climate targets.
  • Its record on controversies5/10Points deducted for controversies or its business model. The finding is under question 10.

A score changes when the evidence does. We use new published evidence at the next rescore. Anyone can send us new evidence, free. How to send it.

The calculation

How is Digital Realty's SINK score calculated?

Same ten questions for every company. No private weighting.

SINK = (0.3 × Base + 0.7 × Performance) × Scale
Industry base impact
Construction / Real Estate sector ceiling.
35 / 100
Performance score
Sum of the ten questions, each scored 0 to 10.
56 / 100
Raw score
Weighted average before scale penalty.
(0.3 × 35) + (0.7 × 56) = 49.7
Scale penalty
Multiplier based on total emissions. Bigger polluters lose more.
× 0.82
Final score
Rounded. Below expectations.
41 / 100
Where the evidence comes from

What evidence is Digital Realty's score based on?

12 sources used in this assessment. All publicly available. Each row shows which of the ten questions it informed.

0% of them were published by Digital Realty itself; the rest come from independent sources.

Scope 2, 2025: market-based 463,239 t, location-based 3,616,208 t. The score uses market-based.

12 of 12 sources are independent of the company.

[1]Public record
French Prefecture of Bouches-du-Rhone: Inspection Report MRS3 Interxion France

“745 kg de fluide frigorigene R134A depuis 2021”

2023
Q1Q10
View →
[2]Public record
French Prefecture of Bouches-du-Rhone: Inspection Record

“De nombreuses fuites de fluide frigorigene ont eu lieu sur des installations d'Interxion depuis la mise en service du data-center”

2023
Q10
View →
[3]SEC filing
SEC EDGAR: Digital Realty 10-K Filing 2025

“diesel-powered generators, which provide emergency back-up power at most of our facilities”

2026
Q1
View →
[4]SEC filing
SEC EDGAR: Digital Realty Proxy Statement (DEF 14A) 2026

“Approximately 32% of DLR's water consumption is sourced from regions experiencing high or extremely high-water stress”

2026
Q7Q9
View →
[5]SEC filing
SEC EDGAR: Digital Realty 8-K Filing May 2026

“A stockholder proposal regarding enhanced water risk disclosure. Votes For Votes Against Abstentions Broker Non-Votes 69,757,155 240,748,354”

2026
Q7
View →
[6]Independent source
La Quadrature du Net: Investigation — Data Centre Infrastructure and Environmental Impact, Marseille

“highlighted concerns about the effects of discharging these hot waters into the marine environment”

2025
Q5Q7Q10
View →
[7]Independent source
DataCenterDynamics: Digital Realty Sixth Data Centre Marseille

“The three facilities all utilize river cooling”

Unknown
Q5
View →
[8]Independent source
Diligent: Investors Focus on Environmental Cost of AI Physical Footprint

“called for reporting on region-level water metrics”

Unknown
Q7
View →
[9]Third-party verified
Science Based Targets initiative: Company SBTi Target Validation

“Digital Realty commits to reduce absolute scope 1 and 2 GHG emissions 42% by 2030 from a 2023 base year.”

Ongoing
Q8
View →
[10]
go2.digitalrealty.com

“Scope 2: market-based 463,239 948,175 1,547,989”

Q1Q2Q3Q4Q5Q6Q7Q8Q9Q10
View →
[11]
banquedesterritoires.fr

“est enfin accusée de "greenwashing”

Q10
View →
[12]
datacenterdynamics.com

“An environmental group has protested against two data centers”

Q10
View →

If you believe a source has been misread or a newer version exists, submit a challenge.

For Digital Realty

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    Digital Realty: SINK sustainability score 41/100.

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Digital Realty in context

How does Digital Realty compare with other construction / real estate companies?

Where Digital Realty sits among construction / real estate peers.

Among the 39 major construction / real estate brands we've scored, Digital Realty sits 20th of 39.

20/39
Digital Realty's rank
41
Industry average
26
Industry low
60
Industry high
See all 39 in Construction / Real Estate →
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