Throughout the 1980s, oil industry reps discussed the dangers of burning fossil fuels, acknowledging the risk their product posed to the future of humanity. However, instead of warning the public or pivoting towards renewable energy sources, they doubled down on oil — and launched a decades-long campaign to discredit climate change science. Stephanie Honchell Smith digs into Big Oil's tactics. Lesson by Stephanie Honchell Smith, directed by Sofia Pashaei.