Debris covered Pasterze glacier surface in the Eastern Alps melting due to climate change and global warming, Retreating glacier, Austria, Aerial Closeup

closeup aerial pasterze glacier melting vanishing debris eastern alps retreating austria frozen crevasses landscape summer geography oldest iceform fossil fuel moraine climate boiling climate change el nino mountain evolution earth drone shot ice surface atmosphere ice sheet alpine co2 cracked valley glacier himalayas ecosystem habitat global warming carbon emission deglaciation climate crisis texture biodiversity austrian basins high tauern national park environmental damage minerals muddy