American Quotes and aphorisms about glaciers Adam Ferrara Orison Swett Marden John Muir ,, All the world lies warm in one heart, yet the Sierra seems to get more light than other mountains. ... Donella Meadows Heidi Hammel ,, It's very clear that global climate change is occurring on earth, but it's also been very clear tha... Jon Krakauer Don Young Rza James Balog James Balog