Despite the environmental laws, the 1947 Tongass Timber Act guaranteed

Tongass Timber Act of 1947 seeks to guarantee that planned pulp mills would have a secure wood supply

Explanation:

Tongass Timber Act was passed by the Congress in 1947, this legislation authorized 50-year leases from the U. S. Forest Service to timber companies for the purpose of felling pulp timber, such that, despite the environmental laws that favours afforestation, there would be a guarantee that planned pulp mills would have a secure wood supply. This is to make Pulp mills to generate employment for the people of Alaska and as well to boost the economy of the area.

Hence, despite environmental law, Tongass Timber Act of 1947 seeks to guarantee that planned pulp mills would have a secure wood supply