A global environmental crisis 42,000 years ago

نویسندگان

چکیده

Reversing the field Do terrestrial geomagnetic reversals have an effect on Earth's climate? Cooper et al. created a precisely dated radiocarbon record around time of Laschamps reversal about 41,000 years ago from rings New Zealand swamp kauri trees. This reveals substantial increase in carbon-14 content atmosphere culminating during period weakening magnetic strength preceding polarity switch. The authors modeled consequences this event and concluded that minimum caused changes atmospheric ozone concentration drove synchronous global climate environmental shifts. Science , issue p. 811

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ژورنال

عنوان ژورنال: Science

سال: 2021

ISSN: ['2797-0744', '2797-1031']

DOI: https://doi.org/10.1126/science.abb8677