Summary - L.1450 (12/2025) - Methodologies for the assessment of the environmental impact of the information and communication technology sector

Recommendation ITU-T L.1450, which forms part of the ITU-T L.1400 series, consists of two parts:
1)Part I: The methodology for calculating the information and communication technology (ICT) sector footprint with respect to life cycle environmental impact including greenhouse gas (GHG) emissions;
2)Part II: The methodology for defining GHG emissions budget for the ICT sector considering a 2 C or lower trajectory.
Appendix IV gives an example of a partial information and technology (ICT) sector footprint derived in line with Part I of the Recommendation. Appendix X gives an example of the entire ICT sector footprint.