Tag: volcanic ash
How did the dinosaurs disappear?
Dinosaurs are fascinating: some of them were the largest representatives of life on earth. So how could such forces of nature be exterminated? First, it is important to remember that…
Noctilucent cloud: what is it?
Noctilucent clouds mainly appear at latitudes between 50 and 70°. But with global warming, they tend to “descent” to lower latitudes. © petraboekhoff, Pixabay, CC0 Creative Commons fs12