Greenhouse Gas Levels Hit Record High in 2025, WMO Warns
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The World Meteorological Organization (WMO) reports that greenhouse gas levels reached a record high in 2025. The WMO is the United Nations agency that monitors weather, climate, and the atmosphere.
Greenhouse gases trap heat in the Earth's atmosphere. Higher levels of these gases raise global temperatures and drive climate change.
The record levels mark a continuing upward trend. The WMO's warning adds pressure on governments to strengthen efforts to cut emissions.