From the CO2Science archive: Scots, or scotch, pine, formally called Pinus sylvestris L., was, like many settlers in Ontario, an immigrant from Scotland. A handsome fellow, it was introduced as a hardy and fast-growing conifer for controlling erosion on abandoned agricultural sites. We are surprised to see it listed as an entry on a site devoted to managing invasive species, but if people think it grows too much now, wait until they see what’s coming. From 1996 to 2011 there were 22 experiments on the growth response to an extra 300 ppm. The average gain in photosynthesis was 70.1%. Aye laddie, it’s a grand thing to be a Scots Pine with all that extra CO2 about. You might even grow up to be a caber.