claim: Drought in the western U.S. pales in comparison to the mega-droughts tree rings tell us existed in centuries past.
evidences.evidence_id: Droughts in the United States:36
evidences.article: Droughts in the United States
evidences.evidence: Drought apparently struck what is now the American Southwest back in the 13th century, which probably affected the Pueblo cities, and tree rings also document drought in the lower and central Mississippi River basin between the 14th and 16th century.
evidences.votes: SUPPORTS SUPPORTS SUPPORTS SUPPORTS
evidences.evidence_id: Megadrought:0
evidences.article: Megadrought
evidences.evidence: A megadrought (or mega-drought) is a prolonged drought lasting two decades or longer.
evidences.votes: NOT_ENOUGH_INFO NOT_ENOUGH_INFO NOT_ENOUGH_INFO NOT_ENOUGH_INFO
evidences.evidence_id: Megadrought:15
evidences.article: Megadrought
evidences.evidence: The tree-ring data indicate that the Western states have experienced droughts that lasted ten times longer than anything the modern U.S. has seen.
evidences.votes: SUPPORTS SUPPORTS SUPPORTS SUPPORTS
evidences.evidence_id: Megadrought:16
evidences.article: Megadrought
evidences.evidence: Based on annual tree rings, NOAA has recorded patterns of drought covering most of the U.S. for every year since 1700.
evidences.votes: SUPPORTS SUPPORTS SUPPORTS SUPPORTS
evidences.evidence_id: Megadrought:25
evidences.article: Megadrought
evidences.evidence: During a 200-year mega drought in the Sierra Nevada that lasted from the 9th to the 12th centuries, trees would grow on newly exposed shoreline at Fallen Leaf Lake, then as the lake grew once again, the trees were preserved under cold water.
evidences.votes: SUPPORTS SUPPORTS SUPPORTS SUPPORTS