We're technically still in an ice age [1]. How far does this need to go to reach the end of that ice age [2]? The Cretaceous period was over ten degrees warmer than our current period [3,4,5]. It supported a lot (though much different) biodiversity. How long would it take us to push into these temperature ranges? And how long to exceed them? How much species diversity will we lose at each half degree increment from t…
Climate change deniers tell each other we are coming out of The Little Ice Age that started in 1200AD. Which is technically correct. What they don’t tell each other is that “Little” is an understatement and we shot way past the prior “Medieval Warm Period” long ago and are only accelerating. https://en.m.wikipedia.org/wiki/Little_Ice_Age#/media/File%3...
https://en.wikipedia.org/wiki/Geologic_temperature_record#/m...
As you can see, we are indeed coming out of one of the coldest periods ever in Earth's history.