All Questions
Tagged with paleoclimatology volcanology
5 questions
4
votes
1
answer
84
views
Frost in trees in the middle of summer (of 536)
It was so cold that frost formed inside trees in the middle of summer.
Traces of this have been found in Russia, among other places. It is very rare for trees to freeze internally during the summer.
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- 2,359
2
votes
1
answer
341
views
How many extreme shifts in climate has Earth gone through in its existence?
As the Earth formed, it went through cycles of essentially hotter and colder periods. Extremely volcanic times and ice ages, in feedback loops contributing to one another. CO2 swinging from high to ...
- 1,178
13
votes
2
answers
440
views
How did CO₂ originate on Earth before there was life?
To start life there has to be $\ce{CO2}$.
$\ce{Solar energy + 6CO2 + 6H2O -> C6H12O6 (sugars) + 6O2}$
$C_6H_{12}O_{6} + O_2 \longrightarrow H_2O + {CO}_2 + \text{Energy}$
So to start this cycle, ...
- 133
11
votes
2
answers
284
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Would a volcanic winter trigger an oceanic "spring"?
There is large amounts of observations supporting the effects of volcanic eruptions on climate: A long term subtle warming effect due to $\small\mathsf{CO_2}$ and a short term, but more intense ...
- 17.7k
15
votes
3
answers
610
views
What, if any, paleoclimate data can be derived from igneous rocks?
Paleoclimate data often derives from sedimentary rocks. Metamorphic rocks can also contribute to paleoclimate information in a wide variety of ways.
What about igneous rocks? I guess that this can ...
- 23.3k