The report identifies significant risks from El Niño-driven extreme heat, particularly in vulnerable regions. Nigeria is projected to suffer the highest number of heat-related deaths, with an estimated 31,400 fatalities. Other heavily impacted countries include Indonesia, Sudan, India, and Brazil. The United States ranks among the top 20 affected nations, with 3,500 projected deaths. In addition to heat-related fatalities, El Niño is expected to exacerbate other extreme weather events, such as fires, floods, and droughts. These impacts highlight the urgent need for preparedness and mitigation strategies to protect lives and reduce the severity of outcomes.