[esborrany]
https://en.wikipedia.org/wiki/Paleoclimatology
Phanerozoic climate
500 million years of climate change
Main article: Phanerozoic
Major drivers for the preindustrial ages have been variations of the sun, volcanic ashes and exhalations, relative movements of the earth towards the sun, and tectonically induced effects as for major sea currents, watersheds, and ocean oscillations. In the early Phanerozoic, increased atmospheric carbon dioxide concentrations have been linked to driving or amplifying increased global temperatures.[20] Royer et al. 2004[21] found a climate sensitivity for the rest of the Phanerozoic which was calculated to be similar to today’s modern range of values.
The Huronian glaciation, is the first known glaciation in Earth’s history, and lasted from 2400-2100 million years ago.
The Cryogenian glaciation lasted from 720-635 million years ago.
The Andean-Saharan glaciation lasted from 450–420 million years ago.
The Karoo glaciation lasted from 360–260 million years ago.
The Quaternary glaciation is the current glaciation period and began 2.58 million years ago.
Al llarg del quaternari que és una era freda en conjunt, s’observen períodes d’uns 100.000 anys pels cicles de fred-calor
Temperatura mitjana dels últims 12.000 anys
ESDEVENIMENTS CONEGUTS
- Faint young Sun paradox (start)
- Huronian glaciation (~2400 Mya Earth completely covered in ice probably due to Great Oxygenation Event)
- Later Neoproterozoic Snowball Earth (~600 Mya, precursor to the Cambrian Explosion)
- Andean-Saharan glaciation (~450 Mya)
- Carboniferous Rainforest Collapse (~300 Mya)
- Permian–Triassic extinction event (251.4 Mya)
- Oceanic anoxic events (~120 Mya, 93 Mya, and others)
- Cretaceous–Paleogene extinction event (66 Mya)
- Paleocene–Eocene Thermal Maximum (Paleocene–Eocene, 55Mya)
- Younger Dryas/The Big Freeze (~11,000 BC)
- Holocene climatic optimum (~7000–3000 BC)
- Extreme weather events of 535–536 (535–536 AD)
- Medieval Warm Period (900–1300)
- Little Ice Age (1300–1800)
- Year Without a Summer (1816)