Original title: international latest research: global sea surface temperature has been rising for the past 12000 years
According to a research paper on climate science recently published in the world famous academic journal Nature, the global sea surface temperature has been rising in the past 12000 years. The latest study has helped to bridge the gap between climate models and data used to reconstruct Holocene historical climate change.
According to the paper, previous reconstructions of historical climate were based on preserved geological data. These reconstructions showed that the temperature had a warm peak about 6000 years ago, but then dropped all the way to the industrial age. However, these reconstruction results are not consistent with the long-term climate simulation, which shows that the temperature has been warming during this period.
Samantha Bova and colleagues at Rutgers University in New Jersey re interpreted two recent climate reconstructions and found that most of the records represent seasonal rather than annual temperatures. To do this, they devised a method to assess the seasonal bias of individual records and use them to calculate the average annual sea surface temperature. Further study shows that the average annual sea surface temperature has been rising steadily in the past 12000 years, which is also consistent with the climate simulation of this period.
The author thinks that the climate warming from 12000 to 6500 years ago was caused by the retreat of ice sheet, while the recent warming was caused by the increase of greenhouse gas emissions. They concluded that the current temperature is the highest in the past 12000 years, similar to that of the last interglacial period about 125000 years ago. (reporter Sun Zifa)
(editor in chief: Zhao Zhuqing, LV Qian)