Forest ecologist Ola Engelmark compares forestry with medical science.
Because just like a doctor who learns how the body works to heal, a forest ranger must also be curious about how the forest works biologically.
-It will then guide us in how hard we can use the forests or how we can manage them to reduce damage and fire risk, says Ola Engellmark.
Watch the entire World of Science "The Battle for the Forest - Sweden's Last Forests" on SVTplay.