Exceeding the 1.5°C threshold poses severe risks, including irreversible changes to ice sheets, permafrost, ocean circulation, and coral systems. These changes could lead to devastating impacts on ecosystems and human populations, such as rising sea levels, extreme weather events, and loss of biodiversity. The report highlights that every fraction of a degree above 1.5°C increases the likelihood of catastrophic outcomes. Without immediate and significant action, the world risks facing long-term environmental and socio-economic consequences, including displacement, food insecurity, and health crises.