Last weekend, I found myself in Chilean Patagonia, face to face with a cluster of icebergs at the foot of a glacier in Torres del Paine National Park.

Seeing something in person that I’d previously seen only in photographs was a powerful experience.

The guide mentioned that the glacier is receding at a clip of 4 kilometers per year.

That’s fast.

But nothing was more powerful than seeing–and hearing– two chunks of an iceberg crack and begin to float away towards the shore.

If you were wondering whether global warming is real, get down to Patagonia fast… those icebergs are going, going, almost gone.

Photos: Julie Schwietert Collazo (Matador Travel)