Protecting the most at-risk old growth forests in two B.C. timber supply areas would lead to $10.9 billion in economic benefits over the next century, a new report has found.  However, those gains would be wiped out if logging were to carry on as it is today across the Prince George and Okanagan timber supply areas, concluded the environmental consulting firm ESSA Technologies in a report published Monday. Together, the two timber supply areas (TSA) contain about 10 per cent of B.C.’s total old-growth forests mapped in 2021. If they were fully protected, modelling in the report found the two regions’ old-growth forests could generate up to $43.1 billion in net economic benefits over the next 100 years. That accounts for $4.1 billion in losses in timber production across the two supply area.