Скачать или смотреть ❄️🔍 Climate Clues: How Ice Cores Unlock Earth’s Secret History

Buried deep within glaciers and polar ice sheets lie ancient time capsules—ice cores that preserve thousands of years of Earth’s climate history. Here’s how scientists decode them:

Layers of time: Each ice layer = 1 year, like tree rings. The oldest ice cores go back 800,000 years!

Trapped bubbles: Tiny air pockets reveal past CO2 levels and atmospheric composition.

Volcanic ash & pollutants: Mark historical events like eruptions or industrial revolutions.

Climate trends: Show how Earth survived ice ages, warming periods, and today’s human-driven change.

⚠️ Shocking fact: Ice cores prove today’s CO2 levels are higher than any point in the last 800 millennia.


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