By visiting you accept the use of cookies. Read more about cookies.

What we can do together

On top of our own CO2 investments, we know that passengers want to play their own active role in lowering the effect of CO2 emissions. The result is a voluntary service called CO2ZERO.


CO2ZERO is a service where you compensate for your personal CO2 emissions by investing in CO2 reduction projects approved by the World Wide Fund for Nature. 

It is quite simply the easiest, most effective and least costly way to fly CO2 neutral.

KLM keeps the cost low by: 

  • avoiding costly and unnecessary intermediate agents.
  • focusing on guaranteed realisation of renewable energy projects; not the ownership but the effect of a project is what matters 
  • selecting projects in the early development stages when the prices are still low.
  • covering all overhead costs of the CO2ZERO service, so that 100% of your payment can go directly to the development of projects. 


Verification of the emission data and the methodology for calculating carbon emissions is done by KPMG Sustainability. 

Download the declaration provided by KPMG(PDF, 3MB)

Download the description of the calculation method(PDF, 5.8MB)

Do you have a booking? Compensate for your flight now


Calculate your flight’s CO2

Girl in grass

When you book a KLM flight you can use our CO2ZERO service to see what environmental impact it will have, plus how little it costs to neutralize it.

Calculate CO2 emissions and costs

Sustainable travel

Frequently asked questions

Back to top