Scientists use tree rings to find evidence of largest solar storm on record

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Scientists use tree rings to find evidence of largest solar storm on record
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A similar storm today would likely knock out electrical systems and cause widespread blackouts.

Share on linkedin Tree rings of a buried subfossil tree in the Drouzet River in the Southern French Alps.

Scientists use C14 levels and its radioactive decay rate to estimate how long an organism has been dead, a process called Trees are ideal for determining atmospheric C14 levels because they capture yearly records of Earth's past climate in their annual growth rings.The team of scientists discovered evidence of the storm by measuring the levels of C14 in rings of ancient pine trees that lived in the French Alps more than 14,000 years ago.

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