glacier lake bianco in the swiss alps at the bernina hospitz where you can see melting glaciers and permafrost

berglandschaft mountainlandscape schweizer alpen swiss alps gletscherschwund glacier klimawandel global clima change lago bianco oberengadin bernina hospitzm wandern trekking biking hiking klettern bergsteigen gletschersee lake hospitz melting glaciers permafrost magnificant magic mountain region upper engadin climate