Climate Changes Over Time

Long and Short Term Changes in Climate By : Sarah Ramanathan Keiren Alam Chantal Liu Manal Rahim

[object Object],[object Object],Introduction

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Long Term Changes in climate (millions of years - hundreds of thousands of years) Chantal & Manal

[object Object],[object Object],Changes Due to Continental Drift

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Long-Term Cycles in Climate ,[object Object],[object Object],[object Object]

Recurrence of Interglacial Periods and Ice Ages ,[object Object],[object Object]

Why these Interglacial Periods &Ice Ages Keep Happening ,[object Object],[object Object],[object Object],[object Object],[object Object]

In a cycle close to 42,000 years, Earth tilts back and forth on its axis from 22.1 degrees to 24.5 degrees

Direction (wobble) of tilt (Axial Precession) ,[object Object],[object Object]

Short Term Changes in Climate (decades - thousands of years) Sarah & Keiren

Volcanic Eruptions ,[object Object],[object Object]

Changes in Sun’s Radiation ,[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],[object Object],Ocean Currents

Ocean currents can have a major effect on the weather The global conveyor belt begins around the North Pole and then works its way down, traveling through all of the oceans before circling back

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Bibliography ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

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Climate Changes Over Time

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