NEWS ERG student compiles data on climate change — right outside the President’s window! [Japan’s cherry blossoms signal warmest climate in more than 1,000 years]
From the April 4 Washington Post: and developed by ERG PhD student Zeke Hausfather:
For more than 1,000 years, emperors, aristocrats, governors and monks have chronicled the flowering of Japan’s famed cherry trees in the city of Kyoto. But bloom dates have shifted radically earlier in recent decades, a sure sign that the region’s climate is warming and warming fast.
Yasuyuki Aono, a professor of environmental sciences at Osaka Prefecture University, has assembled a data set that compiles blossom-flowering dates in Kyoto all the way back to 800 A.D. It shows a sudden and remarkable change in the past 150 to 200 years.
From roughly 800 to 1850, the blossom flowering time was fairly stable. While the bloom dates bounced around quite a bit from year to year during April, the long-term average hovered between April 10 and April 17 (the 100th to 107th day of the year).
(Invert plot to see the Hockey Stick!)