Understanding Earths History Ice Cores Why is ice

Understanding Earths History  Ice Cores Why is ice

Understanding Earths History Ice Cores Why is ice key to our understanding of earths history? Lets start with volcanoes

Get ready for your mind to be BLOWN! The Earth actually gets COLDER after big volcanic eruptions!

eruptions affect the Earths temp? 1. Dust, ash, glass, and rock are released into the air during a

volcanic eruption. 2. These things block the sun from reaching earth! Clouds of ash can

cover entire continents ! In 2010, the Icelandic volcano Eyjafjallajokull erupted, spewing thousands of tons of ash into the air. 95,000 European flights were cancelled as a

result of the eruption! What information do Ice Cores & Tree Rings tell us? -Tell us how the CLIMATE has changed over

time Ice Cores Ice core- a sample of ice and snow that have built up over

thousands of years -tell the amount of gasses in Earths atmosphere over time. What do ice cores tell us

about the climate? Black or brown coloringVOLCANIC ERUPTION (color caused by the ash) Yellowish colorPollution in the air

Bubbles- Carbon Dioxide (CO2) is in the air (lots of bubbles means

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