T.C. Boyle used satire to contribute to this theme by indirectly seeking attention to a serious condition so that change can be effected.
Satire refers to the use of humor, exaggeration, irony, or ridicule to expose and criticize the vices of a people or a person, especially in the areas or context of contemporary politics.
The textual evidence of satire from the text is given below:
“But just because we banned it domestically, under pressure from the bird watching contingent and the hopheads down at the EPA, it doesn't necessarily follow that the rest of the world especially the developing world is about to jump on the bandwagon. And that's the keyword here, Senator: developing.”
A theme on the other hand refers to the central message that an author wishes to communicate via his or her work of literature.
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https://brainly.com/question/757147