Palm trees are spreading northward. How far will they go?

[rangerrebew]

Public Release: 19-Mar-2018
Palm trees are spreading northward. How far will they go?

 

What does it take for palm trees, the unofficial trademark of tropical landscapes, to expand into northern parts of the world that have long been too cold for palm trees to survive? A new study, led by Lamont-Doherty Earth Observatory researcher Tammo Reichgelt, attempts to answer this question. He and his colleagues analyzed a broad dataset to determine global palm tree distribution in relation to temperature.


"In our paper, we draw a fully quantitative line in the sand and ask, 'How cold is too cold for palms?'" said Reichgelt.

https://www.eurekalert.org/pub_releases/2018-03/teia-pta031918.php

[Free Vulcan]

I call BS.

[DB]

How about because people transport and plant them... It freezes here every winter yet there are Palm trees because people like the look of them. Duh...

[truth_seeker]

FWIW today many species of vegetation that are thought to be native to most of California, are in fact from other places.

Eucalyptus (Australia) trees and Oleander (?) hedges are two.

Some types of plants are moved by birds and floating debris on the oceans. Others moved by humans.