AI Article Synopsis
- The transition from the late Miocene to early Pliocene was marked by significant climate changes, including increased CO levels, which can help understand current climate responses in Asia.
- This CO-induced warming led to increased moisture transport in East Asia's summer monsoon, while also causing arid conditions in Central Asia due to higher evaporation rates.
- The study supports the idea that wetter regions will become wetter and drier regions will become drier due to climate change, highlighting a complex response to solar insolation patterns over time.
Article Abstract
Across the Miocene-Pliocene boundary (MPB; 5.3 million years ago, Ma), late Miocene cooling gave way to the early-to-middle Pliocene Warm Period. This transition, across which atmospheric CO concentrations increased to levels similar to present, holds potential for deciphering regional climate responses in Asia-currently home to more than half of the world's population- to global climate change. Here we find that CO-induced MPB warming both increased summer monsoon moisture transport over East Asia, and enhanced aridification over large parts of Central Asia by increasing evaporation, based on integration of our ~1-2-thousand-year (kyr) resolution summer monsoon records from the Chinese Loess Plateau aeolian red clay with existing terrestrial records, land-sea correlations, and climate model simulations. Our results offer palaeoclimate-based support for 'wet-gets-wetter and dry-gets-drier' projections of future regional hydroclimate responses to sustained anthropogenic forcing. Moreover, our high-resolution monsoon records reveal a dynamic response to eccentricity modulation of solar insolation, with predominant 405-kyr and ~100-kyr periodicities between 8.1 and 3.4 Ma.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8626456 | PMC |
| http://dx.doi.org/10.1038/s41467-021-27054-5 | DOI Listing |
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Article Synopsis
- The transition from the late Miocene to early Pliocene was marked by significant climate changes, including increased CO levels, which can help understand current climate responses in Asia.
- This CO-induced warming led to increased moisture transport in East Asia's summer monsoon, while also causing arid conditions in Central Asia due to higher evaporation rates.
- The study supports the idea that wetter regions will become wetter and drier regions will become drier due to climate change, highlighting a complex response to solar insolation patterns over time.
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