Climate change poses an imminent threat to life on Earth, according to a group of prominent scientists. They have expressed shock at the intensity of the extreme weather events experienced in 2023, including devastating heat waves and floods. The scientists argue that humanity has made minimal progress in reducing greenhouse gas emissions, with levels reaching record highs. This assessment comes just ahead of the UN COP28 climate negotiations, where the authors hope policymakers will take urgent action to address the climate emergency. The study reveals that 20 out of 35 vital signs of the planet have reached record extremes this year, with sea surface temperatures going off the charts. The potentially severe impacts of climate change include threats to sea life, coral reefs, and an increase in the intensity of tropical storms. The report warns that we are entering a period where annual temperatures will surpass the Paris Agreement target of 1.5°C, risking irreversible damage from climate feedback loops and tipping points. It emphasizes the importance of reducing emissions and curbing temperature rise to mitigate these risks. The report also highlights the need for world leaders to enact policies to curb climate change and support vulnerable regions in adapting to its effects.