Researchers analysed 3,000 years-worth of sediments in Lake Bosumtwi, Ghana, and found that the last such 'megadrought' ended 250 years ago. ❋ Unknown (2009)
GEOLOGY includes three papers about Mars: continuation of the “jelly sandwich” versus “crème brûlée” debate; support for the Snowball Earth hypothesis; what nine-million-year-old tooth enamel says about vegetation in an ancient sub-Himalayan ecosystem; anthropogenic lead in the Tyrrhenian Sea; evidence for a prehistoric South Pacific tsunami; a multicentennial megadrought in medieval Europe; and a newly discovered fossil turtle in the Canadian Arctic. ❋ Unknown (2009)
Colorado River streamflow history reveals megadrought before 1490 ❋ Unknown (2007)
I am concerned that the current conditions may herald a megadrought and after that, global cooling and all the ills which would accompany it. mzed ❋ Unknown (2007)
It was the last blast of the most recent past Negative PDO, which gave droughts just shy of the megadrought category during the 50s and the 70s, affecting large swaths of the US. ❋ Unknown (2007)
Martin, respectfully: how are you going to sample the stems that did not survive the “megadrought” years? ❋ Unknown (2007)
Not to make anyone nervous, but we are overdue for a megadrought. ❋ Unknown (2007)
Lloyd Fig 2 shows peak per capita mortality occurring during the megadrought of AD1150, at a rate of 0.09/50 years. ❋ Unknown (2006)
The next question, of course, is whether an extreme megadrought could strike again in our warming world. ❋ Unknown (2011)
The exact cause of the harshest megadrought in at least the past 50,000 years, however, remains unclear. ❋ Unknown (2011)
An expansive megadrought that parched ancient Africa and southern Asia about 16,000 years ago was one of the most intense and far-reaching dry periods in the history of modern humans, new climate research indicates. ❋ Unknown (2011)
By looking at climate records, including samples of ancient sediments taken from Lake Victoria and Lake Tanganyika in Tanzania, the researchers pegged the timing of the megadrought to the peak of a 3,000-year period when icebergs and their meltwater surged into the North Atlantic. ❋ Unknown (2011)
"If anything is scary, the scariest is that we could trip across a transition into a megadrought." ❋ William DeBuys (2011)
The one that finished off Mesa Verdean culture in the thirteenth century was similarly a "megadrought." ❋ William DeBuys (2011)
Tim Jones: If you've got the chops to prove imminent AGW forcing for drought in America I'd love to see how to tease the coming megadrought out of natural variability. ❋ Unknown (2010)
