Image: Reuters/Hemanshi Kamani Amazon's operational carbon emissions grew the most at 182 per cent in 2023 compared to three years before, followed by Microsoft at 155 pre cent, Meta at 145 per cent and Alphabet at 138 per cent, according to the report. The ITU tracked the greenhouse gas emissions of 200 leading digital companies between 2020 and 2023. Meta, which owns Facebook and WhatsApp, pointed Reuters to its sustainability report that said it is working to reduce emissions, energy and water used to power its data centres. Amazon said it is committed to powering its operations more sustainably by investing in new carbon-free energy projects, including nuclear and renewable energy. Microsoft highlighted its sustainability report, which says it had doubled its rate of power savings last year and is transitioning towards chip-level liquid cooling designs, instead of traditional cooling systems, to reduce energy at its data centres. The other companies did not respond immediately to requests for comment.