When will the next ice age happen? - Lorraine Lisiecki
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Twenty thousand years ago, the Earth was a frigid landscape where woolly mammoths roamed. Huge ice sheets, several thousand meters thick, encased parts of North America, Asia, and Europe. We commonly know it as the "Ice Age." But geologists call it the Last Glacial Maximum. That’s because it’s the most recent time that ice reached such a huge extent, and “ice age” is an informal term without a single agreed-upon definition. Over the last million years, there have actually been about 10 different glacial maxima. Throughout Earth’s history, climate has varied greatly. For hundreds of millions of years, the planet had no polar ice caps. Without this ice, the sea level was 70 meters higher. At the other extreme, about 700 million years ago, Earth became almost entirely covered in ice during an event known a...
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Twenty thousand years ago, the Earth was a frigid landscape where woolly mammoths roamed. Huge ice sheets, several thousand meters thick, encased parts of North America, Asia, and Europe. We commonly know it as the "Ice Age." But geologists call it the Last Glacial Maximum. That’s because it’s the most recent time that ice reached such a huge extent, and “ice age” is an informal term without a single agreed-upon definition. Over the last million years, there have actually been about 10 different glacial maxima. Throughout Earth’s history, climate has varied greatly. For hundreds of millions of years, the planet had no polar ice caps. Without this ice, the sea level was 70 meters higher. At the other extreme, about 700 million years ago, Earth became almost entirely covered in ice during an event known a...
