Which Trees?

As I have already suggested, if you intend to plant trees as one means of countering climate change and improving biodiversity, it is essential to decide what species of tree to plant and where to put them. An outgoing head of UK forestry has now amplified this message (https://www.theguardian.com/environment/2020/feb/26/firs-fair-uk-must-embrace-conifers-in-climate-fight-says-forestry-chief). He claims that, in terms of removing carbon dioxide from the air, some despised alien conifers are actually superior to broad-leaved trees favoured by some conservationists (and they can be planted at higher densities). He also suggests, not unreasonably, that it would be better to plant mixtures of tree species to reduce the possibility of diseases sweeping through the new woodland areas (monocultures are very prone to disease).