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EVIDENCE - Coggle Diagram
EVIDENCE
Paintings, Photographs and Diaries
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Ancient cave paintings of animals in France and Spain depict nature as it was between 40,000 and 11,000 years ago, a period of time when the climate changed significantly
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Much of the evidence of the Little Ice Age come from diaries and written observations made at the time
Several painters at the time of the Little Ice Age captured the winter landscapes, including paintings and drawings of ice fairs and markets on the River Thames when it froze.
Diaries and written observations can also provide evidence of climate change, although personal accounts can lack objective accuracy
ice cores
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The Antarctic ice sheet is nearly 5 km thick in places and the oldest ice is thought to be 800,000 years old
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Scientists are able to drill deep into the ice and then extract cylindrical cores from ice that is many thousands of years old. The layers of ice can then be dated accurately.
Information about dates and temperature has enabled scientists to create graphs of temperature changes over the last 400,000 years. This information can show past glacial and inter-glacial periods
Global Temperatures Data
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Computer programmes have been used to produce global maps, this does not make them absolutely accurate and reliable
tree rings
Every year, the growth of a tree is shown by a single ring
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