If you wonder where today’s temperature fits in with the grand scheme of time on Earth since the dinosaurs were wiped out, here’s the history. We start with the whole 65 million years, then zoom in, and zoom in again to the last 12,000 from both ends of the world. What’s obvious is that in terms of homo sapiens history, things are warm now (because we’re not in an ice age). But, in terms of homo sapiens civilization, things are cooler than usual, and appear to be cooling.
By Viv Forbes
There are three big drivers of weather for any place on Earth: the latitude, the local environment, and solar system cycles.
The biggest weather factor is latitude – are you in the torrid, temperate, or frigid zone? These climatic zones are defined by the intensity of heat delivered to Earth’s surface by the sun.
In the Torrid Zone, the sun is always high in the sky. It is generally hot, often moist, with low atmospheric pressure, muggy conditions, and abundant rain and storms, some severe. Places close to the Equator get two summers per year (just one long summer) and very little winter. Farther from the equator, there are two seasons: “The Wet” and “The Dry.” The Torrid Zone produces many equatorial rainforests and also contains some deserts. Most people dream of vacations or retirement in the warm zone.
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