#7 Y9 CC L3 Natural Causes of Climate Change
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#7 Y9 CC L3 Natural Causes of Climate Change
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This podcast explores the natural drivers of global climate change throughout the Quaternary period. Listeners learn how Milankovitch cycles—changes in Earth’s orbit, tilt, and wobble—alter solar energy levels to trigger or end ice ages. These orbital shifts are amplified by feedback loops, such as the ice-albedo effect and fluctuating greenhouse gas levels. The discussion also examines shorter-term influences, including the sunspot theory, where lower solar activity like the Maunder Minimum correlates with cooler periods like the Little Ice Age. Additionally, the impact of explosive volcanic eruptions is covered, explaining how sulfuric acid aerosols reflect sunlight to cause transient global cooling, as seen with Mount Pinatubo. Together, these sources reveal the complex natural mechanisms that have shaped Earth's climate over millions of years.
Watch the full‑colour YouTube video for richer visuals, clearer explanations, and boosted Geography learning. L3 Natural causes of climate change
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