Whatever your views, climate change is now a familiar part of everyday conversation. We all know what it is, even if we don't all agree on what we think about it. But 50 years ago, the science of climate change was an academic backwater. The journey from scientific obscurity to the full glare of publicity has been fascinating, full of strange twists, extreme natural disasters, ambitious theories and changing fashions. This Horizon Guide looks back through the BBC program archive to reveal how climate change emerged from the shadows, to take its place at the centre stage of global debate.

Streaming video file encoded with permission for digital streaming by Infobase on October 01, 2015.

Introduction: Horizon Guide to Climate Change --(1:18) -- First Earth Day -- (3:00) -- JASON's Climate Model -- (2:39) -- Warming World -- (4:16) -- History in Ice -- (3:33) -- Frozen Methane Pockets -- (5:54) -- Antarctica is Melting -- (2:50) -- A Carbon Dioxide Rich Atmosphere -- (4:02) -- Behavior of Clouds -- (3:04) -- Glacier Carving -- (6:25) -- Skepticism of Climate Change -- (4:05) -- Scientifc Fraud -- (3:58) -- Danger of Extreme Weather -- (5:35) -- Credits: Horizon Guide to Climate Change -- (0:32).