Sentence 1: As that exhibit shows, we estimate the monetized benefits of the Clear Skies Act in the continental United States will be $44 billion in 2010, including $43 billion in health benefits and $1 billion in recreational visibility benefits.

Sentence 2: We have estimated about $90 billion in monetized benefits of the Clear Skies Act.

If the first sentence is true, then is the second sentence true?
no