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Starlink Services scores 17/100 (Significant gaps) on SINK's independent climate assessment, scored from public data only. Fees pay for the review, never the result. Last verified September 2026.
That places Starlink Services joint 828th of 847 companies scored, and 18th of 18 in Telecommunications.
Starlink Services sits at the bottom of the telecommunications pack.
Among the 18 major telecommunications brands we've scored, Starlink Services sits 18th of 18.
Its three lowest-scoring questions, and what the evidence didn't show.
No Scope 3 supply chain data is published by Starlink or SpaceX.
No trajectory data is published.
Audubon Texas documented that all 9 monitored shorebird nests inspected after the June 6, 2024 launch were 'either missing eggs, had damaged eggs, or both.' Defenders of Wildlife documented wildfires and debris impacting protected habitat.
A score changes when the evidence does. We use new published evidence at the next rescore. Evidence that isn't public can count through an evidence review.
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Get in touch →Strongest on Controversies & Red Flags and Resource Use & Waste (5/10, 3/10). Weakest on Carbon Footprint — Supply Chain and Emissions Trajectory (0/10, 0/10).
The 3 companies in the sector scoring nearest above Starlink Services.
Huawei discloses Scope 1 & 2 emissions with third-party verification but refuses to report Scope 3, masking the vast majority of its footprint.
See the breakdown →Comcast's Scope 1 and 2 emissions are down 41% since 2019 with Deloitte assurance, and it has SBTi-validated near-term targets, but part of its Scope 3 fall comes from changed emission factors rather than physical cuts.
See the breakdown →AT&T's climate performance is undermined by rising Scope 3 emissions and weak renewable energy adoption despite Scope 1–2 reductions.
See the breakdown →The formula and all 18 sources.
Same ten questions for every company. No private weighting.
SINK = (0.3 × Base + 0.7 × Performance) × Scale18 sources used in this assessment. All publicly available. Each row shows which of the ten questions it informed.
“LEO megaconstellations are roughly 6–8 times more emissions intensive (250 kg CO2eq/subscriber/year) than comparative terrestrial 4G mobile broadband”
“The most common launch, the comparatively tiny Falcon 9, emits around 28,000 metric tons of carbon”
“Starlink Services, LLC... Revenue: US$11.4 billion (2025)... Members: 12 million subscribers (June 2026)”
“Between 2019 and 2024, the amount of fuel used by rockets more than tripled”
“SpaceX alone launched a record 96 orbital rockets last year and aims for nearly 150 in 2024”
“Starship is SpaceX's fully reusable, two-stage launch vehicle powered by Raptor engines burning liquid methane (CH4) and liquid oxygen (LOX)”
“After the launch, CBBEP inspected nine nests and found all nine were 'either missing eggs, had damaged eggs, or both'”
“These protected areas have been impacted by falling debris and wildfires caused by explosions and crashes at the launch site”
“These launches pose a threat to the wildlife that the 90,000-acre refuge was established to protect”
“In the U.S., reusability has been embraced by commercial aerospace companies like SpaceX, whose reusable rockets have helped to minimize the environmental footprint of manufacturing components”
“The destructive deorbit of a 550-pound satellite releases about 66 pounds of aluminum oxide nanoparticles into the upper atmosphere”
“Class II Administrative Penalty Proceeding under Section 309(g) of the Clean Water Act”
“SpaceX agreed to pay the penalty over a spill of 36,000 gallons of liquid oxygen into wetlands adjacent its launch area in Boca Chica”
“SpaceX discharged industrial wastewater without a permit four times between March and July of this year”
“The SBTi's Target Dashboard lists companies and financial institutions that have set science-based targets, or have committed to developing targets”
“SpaceX appreciates this opportunity to update the Commission and the public about the reliability and safety of its satellite constellations”
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