During the Cretaceous, Earth’s climate was much warmer than today, with global temperatures averaging 10–15°C higher. The Cretaceous had almost no polar ice, leading to mild to warm temperate climates even at high latitudes.
Many high elevation trees persisted into the Cenozoic, but became more restricted eventually due to climate cooling.
Paleocene-Eocene Thermal Maximum was peak climate.
I could be growing coconuts if only we burned enough coal. My grandkids, perhaps...
No, that was extreme and not really conducive to life support. Lucky for us they quickly realized this and ceased burning fossil fuels, rolled out extensive green initiatives, and switched to electric vehicles or we would be here to tell the tale today!
