For decades climate scientists have been warning of the dangerous effects of the emission of greenhouse gases into the atmosphere. They have urged a variety of measures that might prevent some of those disasters they claim to foresee. Others deny the reality of human-caused climate change and believe that scientists' warnings about the impact are exaggerated. Speeches are presented from both sides of the issue.

Produced by the Speech Resource Company and fully narrated by Robert Wikstrom

Al Gore and Newt Gingrich testify at US House hearings on climate changeDr. Heidi Collen, Environment & Public Works committee hearingBob Carter, University of Southern Queensland, AustraliaLord David Puttnam, "The Reality of Climate Change"John Coleman, founder of the Weather ChannelNoam Chomsky, MIT Center for International StudiesLord Christopher Monckton, 12th Annual Conference on Climate ChangeAl Gore, MaRS Discovery District, TorontoFreeman Dyson, professor of physics at Princeton UniversityWill Steffen, "Living with Climate Change"Donald Trump, "Jobs over Climate Change"Hillary Clinton & Al Gore, 2016 presidential campaignDr. Fred Singer, "Hot Talk and Cold Science"Leonardo DiCaprio, "Messenger of Peace" at United NationsSteve Milloy, "Junk Science"Barack Obama, Climate Change Conference in ParisDonald Trump withdraws from Paris AccordDr. James Hansen, professor at Columbia UniversityDr. Patrick Moore, "CO2 Emissions Are Good"Scott Denning vs. Roy Spencer, Heartland Institute Conference on Climate Change