The Earth's Climate History

Emily Judd, lead author on a paper in the journal Science, detailing 485 million years of the Earth's climate history, makes some interesting points (https://www.washingtonpost.com/climate-environment/2024/09/19/earth-temperature-global-warming-planet/). Her paper notes that our planet has, for most of its history, been warmer than it is currently. So, why worry about current global heating? They also record that swift and dramatic shifts have been associated with many of our world's 'worst moments'. Mass extinctions of over 90% of species present are evident at those times. Anthropogenic (human-caused) climate change, is very fast. The current temperature increases have occurred since the start of the Industrial era. The Earth's temperature may fluctuate over geological time, but this is often bad news for the dominant life forms of the time.