New Climate Data Suggests Greater Historical Warming, Raising Concerns
A new temperature dataset, GloSAT, released by scientists in the UK, extends the historical climate record back to 1781, revealing that the Earth may have warmed more than previously thought. Traditionally, climate data began in 1850, but this new dataset suggests that greenhouse gases increased by 2.5% between 1750 and 1850, potentially causing unaccounted warming. The dataset indicates a cooler Earth from the late 1700s through 1849 compared to the 1850-1900 period, which is used as the 'preindustrial' baseline for assessing climate change. The study, published in Earth System Science Data, highlights that some warming in the late 19th century could be attributed to natural recovery from volcanic eruptions in the early 1800s. However, human activities likely contributed to warming between 1750 and 1850, with estimates suggesting 0.09 degrees of warming due to human influence. 
