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The meetings held in New York in late September—coinciding with the United Nations General Assembly and Climate Week—left a bittersweet impression. The diagnosis remains concerning: global progress in curbing climate change is too slow.
On September 23, the United Nations brought together political leaders, businesses, financial institutions, and civil society organizations to accelerate climate action. The message was clear: honoring commitments is not enough; they must be translated into results much more quickly.
Yet, amidst this landscape, a significant reason to avoid pessimism has also emerged. In recent years, a genuine technological revolution has taken place in three key areas: solar energy, wind energy, and battery storage.
China plays a leading role here. The country has made a massive industrial commitment to renewable energy and dominates a large share of the supply chains for solar panels and batteries. It currently accounts for approximately 85% of global manufacturing capacity for the solar supply chain and nearly 80% for lithium-ion batteries.
This vast manufacturing capacity has played a decisive role in driving down costs. Mass production of solar panels in China has made photovoltaic energy one of the cheapest ways to generate electricity in many markets today.
And it is not just about manufacturing for export; a significant portion of that production is installed domestically. In fact, around 40% of the growth in Chinese solar production over the last decade was destined for foreign markets.
The results are also beginning to show in the country's emissions. The International Energy Agency estimates that China's emissions fell by around 0.5% in 2025, driven—among other factors—by the growth of renewable energy and reduced coal use in electricity generation.
That is why one idea gaining momentum in New York is making affordable solar energy accessible to everyone before the decade ends. It is an ambitious goal, but it offers a clear advantage: the sun belongs to no single country. We all live under the same sun.
The problem is that many people still believe global warming is not happening or that its consequences are exaggerated. Better explaining the climate reality—and, above all, demonstrating the existence of economically viable technological solutions—should be a priority.
We cannot afford to give up. Every lost year makes the task harder, yet the energy revolution already underway proves something fundamental: there is still time to change course, even though our window of opportunity is narrowing.
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