the tundra. Okay, so let's get back to the modeling here a second, because I think this is also a good opportunity for us to differentiate between weather and climate. When we talk about or when you talk about the chaos that exists in these simulations, this is something that we have firsthand experience with as daily consumers of weather forecasts. As the days pass, it becomes incrementally difficult to forecast the weather with any degree of accuracy. How much of this is similar to how we make projections about the Earth's climate? Yeah, it's quite different, although many people use the same computer codes to describe climate as they do weather. Let me tell you why they're different. Weather is largely what we call an initial value problem. If you know the state of the atmosphere now, you can pretty well use the basic laws of physics. If your computer model has got a fine enough description to do a reasonable job of predicting a couple days out. And our ability to predict or (37/57)
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