Carbon Dioxide: The primary greenhouse gas emitted through human activities.
Claim: A conclusion that answers a question about scientific phenomena or a solution to a problem.
Counterclaim: A conclusion that opposes or disagrees with the claim.
Credible: Reasonable, convincing.
Formal style: A set of writing conventions that are appropriate for a specific type of writing, often characterized by standard English, complex sentence structures, infrequent use of personal pronouns, and lack of jargon or slang.
Millennia: The period of a thousand years.
Objective: Factual rather than opinionated.
Unbiased: Fair, neutral, without prejudice.
Validate: Justify, give approval to.