How cold was the ice age? Scientist have been trying to figure this out for years. What is an ice age? It is a long period of reduction in the temperature of the Earth's surface and atmosphere. This result in the presence or expansion of continental and polar ice sheets and alpine glaciers. Earth's climate alternates between ice ages and greenhouse periods, during which there are no glaciers on the planet. There have been at least five documented major ice ages during the 4.6 billion years since the Earth was formed — and most likely many more before humans came on the scene about 2.3 million years ago. The Last Glacial Maximum, or LGM, was a frigid period when huge glaciers covered about half of North America, Europe, some parts of South America and many parts of Asia.
A new study published is Nature in August 2020, analyzes fossil data to find the average temperatures during the last Ice Age. A team lead by Jessica Tierney, associate professor at the University Of Arizona Department Of Geosciences has nailed down the temperature of the last ice age. The findings will help climate scientists evaluate how today is rising atmospheric levels of carbon dioxide influence the average temperatures around the world.
Would we survive the next ice age.
#iceage #climatechange

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