In her speech, Mrs. Angela has discussed the problem of global warming in a variety of ways.Additionally, they outlined strategies for lowering greenhouse gas emissions and global warming by encouraging international cooperation.One tactic used by speaker at the Glasgow Summit is to clarify the causes of global warming.From the result of the analysis of the texts, we conclude that the usage of the pronouns (we and I) result in significant indications.Modality is an influential analytical category that is used to investigate power and solidarity.The usage of the pronoun ( we) indicates (power, authority and solidarity) in the text.Obligation and order imply that the speaker is the authority holder in the text.The causes of global warming are explained by world leaders.This phenomenon demands careful consideration.These pronouns signify the power of language in the text.Obligation represents the authority in the text.The pronoun (we) takes a higher percentage in Mrs. Angela's speech.