We don't walk the edge at all; we're right in the centre of it. Deforestation is a huge contributor to greenhouse gases.
I have to acknowledge that most deforestation is a result of farming, not forestry, because people clear the lands to plant crops to feed their families in developing nations. That being said, in Canada we replant every single tree we take out. The UN recently did a study and concluded that deforestation from forestry in Canada comes out net at zero. I think the UN got it wrong. There is a bit of deforestation because roads aren't always generated as quickly as they should be, but that's basically a rounding error.
Regimes in Canada are partly favoured by the fact that they're provincially owned, and by law we need to regenerate. We've done very well there. I'd remind people that in Canada we still have 91% of our original forest cover after centuries of logging. We harvest less than one quarter of one per cent of the forest each year.
In some ways you could say that replanting is the lowest possible bar. We're now being held accountable, not for just regenerating the forest but for the ecosystem integrity of the forest that returns. Has there been erosion? Has there been an impact on endangered species? Does the forest ecosystem maintain sufficient integrity, not just to be a source of carbon storage but a home for biodiversity? The requirements on us for action become quite a bit more severe than simply regenerating the forest.