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RE: It would be cool if the sign outlined exactly what "action"
Posted on: March 3, 2024 at 10:04:39 CT
90Tiger STL
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The curious thing about ice ages is that the temperature of Earth's atmosphere doesn't stay cold the entire time. Instead, the climate flip-flops between what scientists call "glacial periods" and "interglacial periods."
Glacial periods last tens of thousands of years. Temperatures are much colder, and ice covers more of the planet.
On the other hand, interglacial periods last only a few thousand years and the climate conditions are similar to those on Earth today.We are in an interglacial period right now. It began at the end of the last glacial period, about 10,000 years ago.
Scientists are still working to understand what causes ice ages. One important factor is the amount of light Earth receives from the Sun. The amount of sunlight that reaches Earth can vary quite a lot, mainly due to three factors:
how much Earth is tilted relative to the Sun
whether Earth wobbles a lot or a little as it spins on its axis (kind of like how a toy top can wobble a lot or a little as it spins)
the shape of Earth's orbit as it goes around the Sun (whether it is shaped more like a circle or more like an ellipse or oval)
Glacial periods last tens of thousands of years. Temperatures are much colder, and ice covers more of the planet.
On the other hand, interglacial periods last only a few thousand years and the climate conditions are similar to those on Earth today.We are in an interglacial period right now. It began at the end of the last glacial period, about 10,000 years ago.
Scientists are still working to understand what causes ice ages. One important factor is the amount of light Earth receives from the Sun. The amount of sunlight that reaches Earth can vary quite a lot, mainly due to three factors:
how much Earth is tilted relative to the Sun
whether Earth wobbles a lot or a little as it spins on its axis (kind of like how a toy top can wobble a lot or a little as it spins)
the shape of Earth's orbit as it goes around the Sun (whether it is shaped more like a circle or more like an ellipse or oval)
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RE: It would be cool if the sign outlined exactly what "action" - 90Tiger STL - 3/3 10:04:39