Yeah, well.. Lets think about the cumulative pollution of countries and see how things really are?
And say what you want. But China is at least claiming they will change...
As mentioned before. A deciduous tree that is showing wrinkled branches and where the buds loose their shine or even start to drop off, will most likely not make it. EVergreens where the heart of clusters of needles turnbrown or that go yellow often are not going to make it.
I am off to a big dealer in Belgium tomorrow to pick up 40 field-grown ittoigawas. THey have been dug from the field the last few days. WIll semi-bare-root them and pot them afterwards.
Most trees do fine.