Vorpal wrote:(Snip only in interests of brevity))
As for climate change, it has had a significant impact on ash die back, and has likely contributed to it's rapid spread. However this study suggests that climate change may also alleviate the ash die back crisis in other areas.
https://www.nature.com/articles/srep35303
And secondly regarding Ash dieback and other tree pathogens.
I read the Vorpal quoted article.
It seems to make sense insofar as any study is likely to overlook some small but significant factor. The report indeed concedes this; "Unfortunately, phenomenological models cannot consider processes of host-pathogen coevolution that may influence our results37,38"
The new (very recent) isolation of the genome that provides (total?) resistance is not covered. For the UK Ash population into the future it is a glimmer of hope.
Ben chooses to blame the EU for ease of import of trees. And he may well be quite correct on that score.
Yet why we have had to import trees seems to me to be a failure over a longer period of time by the UK forestry and timber "industries".
Ash regenerates so readily. Why transport it other than for more profit?
The position here is that locally I have thousands of regenerating Ash trees on a small area, mostly under 6 years old, merely from a cessation of grazing.. And there are in Gwynedd large populations of mature Ash. The middle "juvenile" trees are less well represented because of the high sheep populations in many old woodlands. (You could blame the EU for that too, but it won't change much after we leave).
All those aforementioned tress show considerable dieback now, a layman's estimate is a deal more than 50%.
We have already lost just about all of the Wych Elm that formally populated some places- again an timber industry imported pathogen.
Commercial forestry has significant problems at the moment, not only Larch. It is (has been?) often a tax dodge for wealthy folk to boot!
So I take with a hefty pinch a salt the protestations of competence and objectivity from the forest professions.
It could have been somewhat different and arguably healthier if profit had been less the driving factor and woodland had been managed more for amenity, diversity of species, a better local supply of construction grade timber etc.
This is me with my rose tinted spectacles of course. As I am sure will be pointed out.
But to suggest that the professional in this area are all knowing and seeing is to to not see their rather hefty dark glasses.