Researchers build 'digital twin' to model Manhattan air quality

Cornell engineers have developed a "digital twin" framework that creates a real-time virtual representation of urban carbon dioxide conditions, providing a tool that could help city planners monitor emissions, identify hotspots ...

El Niño could be strongest in decades, UN warns

El Niño is forecast to be the strongest since comparable records began four decades ago, the United Nations' climate agency warned Thursday, with the UN chief saying the world was in the "danger zone of extreme weather."

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