To best meet IPCC 2100 goals, growing trees need to be left in the ground until at least that time. They also need to be carbon positive for some of that time and never turn carbon negative. The only exception to this is felling trees where necessary to protect the health or maximise carbon storage of a forest.

Capture without proof of legal and silviculture longevity to 2100 provides no certainty of benefit to the planet. This contrasts with the certainty that GHG emissions will remain in the atmosphere for long periods (GWP 100). Only a deed of encumbrance against felling, given in a high rule of law country, can provide that level of certainty.