In 2023, Earth’s warming rate hit an unparalleled high, with 92% of the record-shattering heat attributed to human activities. Scientists, using UN-approved methods, thoroughly examined the underlying causes of last year’s extreme temperatures. Despite the accelerated warming rate, they did not find substantial evidence of significant acceleration in human-caused climate change beyond the increased combustion of fossil fuels. Earth’s average temperature has climbed by 1.43 degrees Celsius compared to pre-industrial levels, with 1.31 degrees solely attributable to human influence. El Nino and other natural phenomena account for the remaining 8%. Since pre-industrialization, the world has warmed by 1.19 degrees Celsius, with Earth likely to surpass the critical 1.5-degree Celsius warming threshold within 4.5 years unless emission patterns change. Scientists warn that exceeding this limit could trigger catastrophic ecosystem disruptions, including coral reef destruction, Arctic sea ice loss, species extinction, and intensified extreme weather events. Notably, September 2023 witnessed exceptionally high temperatures, which the report attributes to reduced sulfur pollution cooling effects from shipping, overwhelmed by carbon emissions from Canadian wildfires.