This story was originally published by Grist and appears here as part of the Climate Desk collaboration.  Chris Sayer pushed his way through avocado branches and grasped a denuded limb. It was stained black, as if someone had ladled tar over its bark. In February, the temperature had dropped below freezing for three hours, killing the limb. The thick … Continue reading Enjoy Those Avocados, Pistachios and Oranges While You Can, Because They Are Going Away