United Internet

United Internet: Carbon Emissions & Climate Commitments (DE)

United Internet, a German-based post and telecommunication services provider, reported total carbon emissions of approximately 992.5 million kg CO2e in 2025. This figure comprises about 4.2 million kg CO2e from Scope 1 emissions, 65.5 million kg CO2e from Scope 2 (location-based), and 985.5 million kg CO2e from Scope 3 emissions.

Comparing to previous years, United Internet's total emissions have shown a downward trend from approximately 1.136 billion kg CO2e in 2024 (6.5 million kg CO2e Scope 1, 75.8 million kg CO2e Scope 2 location-based, 1.127 billion kg CO2e Scope 3) and approximately 1.125 billion kg CO2e in 2023 (6.2 million kg CO2e Scope 1, 64.8 million kg CO2e Scope 2 location-based, 1.116 billion kg CO2e Scope 3).

Climate Commitments:

United Internet has established several climate commitments:

• Near-term targets (by 2030):

  • The "Consumer Access" segment aims for climate neutrality in Scope 1 and Scope 2 emissions.
  • A 55% reduction in Scope 1 and Scope 2 emissions (equivalent to 5,141 tonnes CO2e) is planned, using 2023 as the base year.
  • IONOS, a subsidiary, has committed to powering its data centres solely with renewable energy by 2030, aiming for emissions-free services (net-zero Scope 1 and 2).

• Long-term targets (by 2045):

  • United Internet is committed to achieving net-zero Scope 1 and Scope 2 emissions across its operations, aligning with the Paris Agreement and German national targets.
  • This includes a 90% long-term reduction in Scope 1 and Scope 2 emissions by 2045 compared to the 2023 base year, representing an absolute reduction of 8,412 tonnes CO2e.
  • Specifically, this translates to an approximate reduction of 5,449 tonnes CO2e in Scope 1 and 2,963 tonnes CO2e in Scope 2.

In 2019, 1&1 IONOS Holding's data centre operations were reported as climate-neutral through sourcing renewable energy and offsetting the remaining non-renewable electricity. The company's reduction targets are aligned with the 1.5°C goal of the Paris Agreement and the Science Based Targets initiative (SBTi) methodology, covering relevant Scope 1 and 2 emission categories and a range of greenhouse gases.