On May 13, a pair of god-like hands emerged from the canals of Venice, Italy.

Image from Lorenzo Quinn.

The building that the arms — which are an art installation titled "Support" — appear to be propping up is the historic Ca' Sagredo Hotel. The sculpture is on display as part of the 2017 La Biennale di Venezia, an annual art exhibition.

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These before-and-after photos of rising seas might make you demand climate action.

Our world's getting warmer, wetter, and more underwater.

1. St. Mark's Square in Venice, Italy

In Venice, the sea has always been close. After all, this is the city famed for its lovely canals and singing gondoliers paddling locals and tourists about. But after years of rising global temperatures, the water is rising, and engineers are finding it harder and harder to keep their beloved city above it. St. Mark's Square regularly finds itself calf-deep in seawater when high tides and full moons combine. Having floating seawalls and pumping groundwater out of city foundations helps hold back the rise — for now. But the city is sinking and sea levels are rising, and eventually one will prevail.

Here's what this public plaza looked like in 1955:

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The North Pole is famous for many things. 24-hour darkness, polar bears, and of course, being the home of Santa Claus.

One thing it's definitely not known for, though, is balmy, casual, "Hey, how cold is it? Do you think I need a light jacket?" type temperatures.

The north pole is freezing. It's one of the coldest places on Earth. In fact, it's sometimes colder than Mars. Mars!

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