Graph showing global average monthly temperatures from 1880-2023 compared to the 1951-1980 average, in degrees Celsius. Each line represents a year, with the temperature scale on the y axis ranging from 2 degrees below average to 2 degrees above, and 0 representing the 1951-1980 baseline. Colours ranging from blue (colder) to red (warmer) are used to illustrate the increase in global temperatures over this time period. The bold red line represents 2023, which was the hottest year since records began. Scientists attribute the temperature increases seen to increased carbon dioxide and other greenhouse gases in the atmosphere due to human activity. Data obtained from GISS Surface Temperature Analysis (GISTEMP v4).