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Climate Change (Climate models (Study ancient climates (Or simulate the…
Climate Change
Climate models
Study ancient climates
Or simulate the weather long time ago
Use CO2
Provide climates for
dinosaur
CO2 Levels were approximately four times 400 millions ago
Happen now---No ice in Antarctica >>Produce a 60 m difference ocean
Paleobiologists provide amodel reconstructing historical climate change
Reconstruct previous climates
Ocean temperatures imprinted in the fossil records
Be read by using chemical analysis
Ex: Shells alters
Skeletonized marine
Reflect the environment where they develop
Analyzing their chemistry like the rings of a tree
Get how hot the summer is and how cold the winter was millions years ago
May be variances
Animal example : Clams/Snails/Coral
Scientists have a meeting
Graph showed how climate change
Studies provide evidence of how different climatic factors come together
2nd part
Examples: Fluctuations of CO2 ----On climate and sea levels
3rd part
1st part
4th part