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View Diary: Here's what climate change looks like (203 comments)

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  •  Yep (24+ / 0-)

    The new map puts me in Zone 4a. We have not had a single instance of zone 4a temps in 8 years. What we do have are wildly fluctuating temperatures, especially in the spring, that wreak havoc with the fruit trees.

    •  It's the variation that's so difficult (9+ / 0-)

      Same here in the upper Midwest.  It's an absurdly warm winter in Chicago - shirtsleeve weather outside today.  If it does that for a week or so, buds start to swell and sap starts to rise, two or three months early.  And then we get a cold spell, down to 20 or so... that's enough to damage plants, but still warmer than normal winters when a week of temps in the single digits or teens is normal, and usually there's some snow on the ground for much of the winter.  The variability, the anomalous spring weather in January - is what causes the most havoc.

      “If the misery of the poor be caused not by the laws of nature, but by our institutions, great is our sin.” Charles Darwin

      by ivorybill on Thu Feb 02, 2012 at 02:29:16 PM PST

      [ Parent ]

    •  yeah, I wish they'd ask the orchard folks (0+ / 0-)

      Here on the Cumberland, I watch and worry--7 straight days in the mid-60s ahead, crocus in full bloom, daffodils with flower heads, and plum trees barely holding back the bloom.

      I only have a few trees, but all the folk who grow apples in giant magnificent orchards here (I buy at least 6 boxes every year--best granny smiths ever) are freaking out--going into the groves EVERYDAY--praying for frost and cold. We haven't had quite enough chill hours, and if these temps hold AND we get an arctic blast in March (we've had hard frost in early May in the past) well, there will be no fruit for YOU and YOU and YOU.

      And, on a grander scale, will it be worth maintaining an orchard if you can't count on cold, heat, and rain being somewhat predictable?

      Food INsecurity is coming to us all.

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