experts estimate around ____ million acres of tree-covered land is considered in risk of mortality.

Experts estimate that around 96 million acres of tree-covered land is considered at risk of mortality. This estimate reflects concerns about various factors including climate change, pest infestations, diseases, deforestation, and wildfires that threaten forest health and tree survival. Some sources mention slightly different figures like 81 million or 125 million acres, but 96 million acres is a commonly cited estimate among experts.