Top scientists meeting in Paris warn that global heating is intensifying and that key climate indicators are worsening. In an annual study published between major IPCC assessments, more than 70 researchers—including contributors associated with the UN Intergovernmental Panel on Climate Change—report record levels of human-caused warming and increasing marine heatwaves. The authors say these developments are reflected in deteriorating climate monitoring indicators, which are used to track the “vitals” of the climate system. The scientists also raise concern about potential disruptions to Earth observation efforts, linking the threat to funding decisions affecting climate and monitoring systems in the United States and other countries. They argue that sustained support for Earth observation is necessary to continue tracking global warming and to maintain the reliability of the data used for climate assessment and analysis. The study presents its findings as an urgent call to protect monitoring capacity even as climate impacts intensify.