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Old 06-12-2016, 03:17 PM
Mangetout Mangetout is offline
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Join Date: May 2001
Location: England
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Originally Posted by Stranger On A Train View Post
Well, it's not all that sensitive. The Earth varies in distance to the Sun of a few million kilometer through its not-quite-circular orbit
Variation in the orbit doesn't necessarily indicate lack of sensitivity

What matters is probably not the momentary condition, but the average of all the various states. Sure, the distance between the earth and sun varies throughout the year, but if you move the earth so that on average, it's a few million kilometers closer or further away than the current average, we might run into trouble.