New Evidence Cosmic Rays Impact Climate

cosmic-ray-shower
New evidence suggests that high-energy particles from space known as galactic cosmic rays affect the Earth’s climate by increasing cloud cover, causing an “umbrella effect.” –Kobe University, Japan, 3 July 2019

Intensified East Asian winter monsoon during the last geomagnetic reversal transition
Yusuke Ueno, Masayuki Hyodo, Tianshui Yang & Shigehiro Katoh
Scientific Reportsvolume 9, Article number: 9389 (2019) | Download Citation

Abstract

The strength of Earth’s magnetic dipole field controls galactic cosmic ray (GCR) flux, and GCR-induced cloud formation can affect climate. Here, we provide the first evidence of the GCR-induced cloud effect on the East-Asian monsoon during the last geomagnetic reversal transition. Bicentennial-resolution monsoon records from the Chinese Loess Plateau revealed that the summer monsoon (SM) was affected by millennial-scale climate events that occurred before and after the reversal, and that the winter monsoon (WM) intensified independently of SM variations; dust accumulation rates increased, coinciding with a cooling event in Osaka Bay. The WM intensification event lasted about 5000 years across an SM peak, during which the Earth’s magnetic dipole field weakened to <25% of its present strength and the GCR flux increased by more than 50%. Thus, the WM intensification likely resulted from the increased land–ocean temperature gradient originating with the strong Siberian High that resulted from the umbrella effect of increased low-cloud cover through an increase in GCR flux.

Details HERE

 

3 thoughts on “New Evidence Cosmic Rays Impact Climate

  1. The Atmosphere Guy July 16, 2019 / 1:48 pm

    There is an interesting paper that has recently been published under the Cornell University banner entitled :-
    “NO EXPERIMENTAL EVIDENCE FOR THE SIGNIFICANT
    ANTHROPOGENIC CLIMATE CHANGE” by J. KAUPPINEN AND P. MALMI
    The key consideration being that, quote, “Low cloud cover controls practically all of the global temperature”
    Well worth downloading the pdf copy of the paper for study, available here:
    http://export.arxiv.org/abs/1907.00165v1

    • Russ Steele July 16, 2019 / 8:28 pm

      Hi, I had downloaded the paper and prepared a post. Now I cannot find it. Thanks for the link and the recommendation.

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