- Climate change is a long-term shift in the planet's weather patterns or average temperatures.
Little ice age; A cool period in Europe
Medieval warm period; warmth in the North atlantic climate. The 'Holocene' is our current warm period.
Long term climate change(Geological timescale);
- icse cores are removed from ice sheets from greenland and the arctic
- the ice cores reveal layers going douwn (similar to tree rings)
- the layers reveals seasons of snowfall, compressed and relayerd over the years
- Air bubbles trapped in the layers contain Co2
- The ice sheets show oxygen isotopes
- Helped to regulate climate change
- Act as carbon sinks
- Evapouration from oceans help to form clouds , vital for precipitation level regulation
- Ocean currents help to spread out evenly, warm water from the equator, to bole poles.
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