Lobal warming is caused by human activity

The goal for this persuasive speech is to convince your audience to accept your well-reasoned,
principled position, on a socially relevant issue. You should take a firm position and attempt to modify the audiencei??s attitudes toward your perspective. You will present information to your audience that is primarily one-sided. Your conclusion must direct the audience to take some specific action.
During this speeches you must use and cite at least five specific complete sources to support your claim.
( LA times, New times, or online sources)

To the writer: My topic is on the Global warming effect, and I want to persuade that global warming is caused by human activity. Thank you.