Logger + Trainee Database
The SFI training program was developed to satisfy the wood-procurement and harvesting requirements of the many SFI-certified wood purchasing companies in Michigan. SFE training consists of core and continuing education (CE) training. This database can be checked by foresters who work for SFI-certified companies.
Facts About Forestry
Do we need trees for oxygen?
No. Compared to the oxygen reserves in the atmosphere, trees produce a very tiny amount. Considering all the vegetation on the Earth, trees also don't contribute much. The oceans produce far more oxygen than trees. Remember that the purpose of photosynthesis is not to produce oxygen, but to produce sugars.