Yes, this is a NASA photo of Io, apparently the fourth largest moon in our solar system, an inner moon of the gas giant Jupiter. Why am I placing an image of another planet’s many moons on a blog about Earth and us? Because this moon with its hidden beauty apparently is part of the whole outside our planet that is affecting our planet’s…..climate! Yes, there could be things beyond our control affecting the storm that just upturned your prized oak tree.
I am not posting this to demonstrate which side of the fence I sit. It’s probably clear already that I am on the side that says “let’s take care and start cleaning house.” I think we all can conceptualize that if a moon-sized chunk of flying rock from space slammed into our planet, our weather would be forever changed (and we’d be gone from it!). I am simply posting this to remind us to have our eyes wide open, realizing we are a part of something so vast, so giant, so mind-boggling big that we cannot even comprehend its effect upon us, and we therefore usually just shut it out. We are in a quark-tight bubble, right? Most assuredly not.
Jerry Mitrovica and Allessandro Forte of the Institut de Physique du Globe de Paris published an article quite a while ago, and perhaps more since, that enlightens us on a bit of what might be happening here. They write about the connection between Earth’s changing shape and the gravitational effects of other bodies in the Solar System, how the other bodies literally change our shape, and our changing shape has effect upon our weather.
“We’re showing for the first time that changes in the Earth’s shape, when coupled with the gravitational effects from other planets, can produce large changes in the Earth’s climate,” Mitrovica comments. The article, from way back in 1997 (an eon in climate-gate) can be seen in archive here: http://bit.ly/dT8Lyy .
This is interesting to me for a couple of reasons. Firstly the obvious, it reminds me to look beyond the earth-bound for our weather patterns, to the not-just-big-but-ginormous perspective. Secondly, from an artistic perspective (being incredibly picky, I know, many won’t see it, and yes I realize this is not a “full earth” but a bit gibbous), it tells me I’m not just seeing things when I look at this photo below shot by Apollo 16. The Earth really isn’t perfectly round! Try explaining this to your kids!
Coming next…..what is a Geoid? How does it relate?