Global Heat Days Surge as CO₂ Hits Record Highs, Climate Studies Warn
Over 100 countries now experience at least 10 more hot days annually compared to a decade ago, according to new climate research. Atmospheric CO₂ concentrations reached 423.9 ppm in 2024, marking the largest one-year increase since measurements began in 1957.
Rising Temperatures and Extreme Heat Events
More than 100 countries now experience at least 10 additional “hot days” per year compared to when the Paris Agreement was established in 2015, according to recent studies by Climate Central and World Weather Attribution groups. The research indicates that global average temperature has risen to 1.3°C above pre-industrial levels, up from 1°C in 2015, resulting in nearly every nation worldwide experiencing hotter conditions.