Although the world continues to generate greenhouse gases and polluting emissions, there are signs of hope. According to a recent report by the International Energy Agency (IEA), in 2025 we saw a respite: global CO2 emissions grew at a much slower rate (just 0.4%).
The main reason? The impressive expansion of solar energy, which is changing the game in the global energy transition.
The contrast between economies
The most curious aspect of the report is the “balance” effect between different regions:
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The challenge in advanced economies: For the first time since 2018, developed countries saw an increase in their emissions. The United States led this trend, forced to rely more on coal due to high natural gas prices. Additionally, U.S. electricity consumption skyrocketed due to the growth of data centers, strong industrial activity, and a colder-than-usual climate.
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The leap of developing countries: Meanwhile, nations like China and India offset much of this impact. China reduced its emissions thanks to its massive investment in solar capacity. On the other hand, India achieved a historic milestone: reducing its emissions under normal economic conditions, something that had only occurred during global crises or the pandemic, driven this time by a good monsoon season and the rise of renewable energies.
Why did demand moderate?
The global growth of energy demand stood at 1.3%, a somewhat slower pace than in the past decade.
A key factor was the natural gas market, whose consumption came to a halt during the first half of the year due to high costs, which forced greater efficiency and the search for cleaner alternatives.
In summary, although the path to total decarbonization remains complex and full of challenges—especially when the industrial economy pressures electricity consumption—the solar boom is proving to be a fundamental pillar in preventing emissions from skyrocketing.
We are seeing how, little by little, the pieces of the energy transition are starting to fit together to protect the environment.
