The evidence for a much warmer Mid-Holocene keeps accumulating.
According to a recent paleoclimate study, today’s Gahai Lake (China) reconstructed surface sediment warm season temperature is 9.4°C. This is similar to the region’s documented meteorological station temperatures (8.8°C, May-September).
The reconstruction’s average Gahai Lake sediment warm season temperatures dating to 8000 to 3500 years ago was determined to be 16.5°C. This means the region was more than 7°C warmer than recent decades during those millennia.
Image Source: Hou et al., 2024
Another new study from the Gulf of Thailand provides robust evidence sea levels were 1.8 – 2.3 m higher than today from 8600 to 6100 years ago. Sea levels were higher because less water was locked up on land as ice throughout the much warmer Mid-Holocene.
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