The Lanham Act applies to through the Commerce Clause.

The Lanham Act defines “commerce” as “all commerce which may be lawfully regulated by Congress,” meaning all commerce subject to Congress's power under the Commerce Clause. Congress's Commerce Clause power, in turn, includes the power to regulate interstate commerce.

Explanation:

From Google

chlorofluorocarbons are released via: aerosol sprays and refrigerants.

a. because the u.s. was the leading with the most technology, economy, etc. also was teamed with other allies witch boosted the economy and materials to improve technology and use it.