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UN Report: AI Boom Drives 150% Surge in Tech Giants’ Indirect Emissions

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A new United Nations report revealed on Thursday that indirect carbon emissions from the operations of four major AI-driven tech giants—Amazon, Microsoft, Alphabet, and Meta—rose by an average of 150% between 2020 and 2023. The sharp increase is largely driven by the vast energy demands of data centers powering artificial intelligence systems.

The report, published by the International Telecommunication Union (ITU), the U.N.’s digital technologies agency, analyzed the greenhouse gas emissions of 200 leading digital companies over the three-year period. Indirect emissions include those generated from purchased electricity, heating, cooling, and steam consumed by a company’s operations.

Among the companies surveyed, Amazon posted the largest rise, with operational carbon emissions soaring 182% over the period. Microsoft followed with a 155% increase, while Meta and Alphabet saw rises of 145% and 138%, respectively.

The growing reliance on AI has led to surging energy demands, with electricity consumption from data centers growing four times faster than overall global electricity usage, according to the ITU. The report projects that carbon emissions from top-emitting AI systems could eventually reach 102.6 million tons of carbon dioxide equivalent annually, further straining existing energy infrastructures.

In response, several companies highlighted their ongoing sustainability efforts. Meta referred Reuters to its sustainability report, stating that it is taking steps to reduce emissions, energy use, and water consumption in its data centers. Amazon emphasized its investments in carbon-free energy projects, including both nuclear and renewable sources. Microsoft pointed to its recent progress in improving energy efficiency, including transitioning to chip-level liquid cooling technologies that consume less energy than traditional cooling systems.

However, the ITU noted that while more digital companies are setting ambitious emissions targets, many of these commitments have yet to translate into meaningful reductions in actual emissions. The report underscores the growing challenge of balancing AI’s rapid expansion with environmental sustainability.

Global Tourism’s Growing Carbon Footprint Threatens Climate Goals, Research Shows

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The travel industry’s carbon footprint has been growing at an alarming rate, outpacing the overall global economy, according to new research published in Nature Communications. The rising demand for international travel has led to significant increases in carbon dioxide (CO2) emissions over the past decade, with tourism-related emissions growing nearly twice as fast as the global economy, researchers say.

The study highlights that tourism in the top 20 emitting countries, including the United States, China, and India, is expanding by up to 5% annually, exacerbating energy consumption and CO2 emissions in these regions. These countries contribute to about three-quarters of the total tourism-related carbon footprint, underscoring the inequality in per-capita emissions.

Transportation, particularly air and ground travel, is identified as a primary contributor to these emissions. Despite some technological advancements aimed at improving fuel efficiency, slow progress in decarbonization continues to drive up the sector’s emissions. The COVID-19 pandemic temporarily halted travel, reducing emissions by 60% in 2020, but tourism has rebounded strongly since, with growth expected to return to pre-pandemic levels by the end of 2024.

In addition to regular commercial flights, private aviation has been a significant contributor. A separate study on private jet emissions found a 46% increase in CO2 emissions between 2019 and 2023. Private jets, which make up a small portion of total aviation, can have an outsized impact. For instance, major international events like COP28 and the FIFA World Cup saw a spike in private jet use, contributing thousands of metric tons of CO2 to the atmosphere.

The broader impact of tourism on global emissions is troubling, with previous studies indicating that tourism contributes approximately 8% of global greenhouse gas emissions—this number has likely grown since. The research stresses the urgent need for effective policies to curb tourism’s environmental impact and align the sector with global climate targets. However, only countries like New Zealand and Denmark are currently monitoring tourism-related emissions at the national level.

Tourism, worth an estimated $10 trillion in 2023, is one of the largest economic sectors globally, driving demand for transportation, accommodation, food, and shopping. The study emphasizes that the tourism industry’s expansion, coupled with its rising emissions, calls for immediate attention from governments and the global community to reduce its environmental impact.