Climate change |
? |
Yes |
Is that because of humans |
? |
No |
Is that because of our galaxy |
? |
Yes |
| Twice the Sun: |
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| left with sunspots (2001), right without, as now in 2009 |
| Variation in Orbital Eccentricity | ||
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| Variation in Axel Obliquity | |||
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| The heat/cold periods in the past |