This pin shows how our atmosphere is melting the polar ice caps. It looks like once they melt, water will take over our lives. I like hour time is incorporated into the picture, saying that we are running out of time slowly but surely.
I really like this design. They did a really good job at making it look sleek and professional. Everything flows nicely together, and since the buttons/tabs don't have a stroke on them they help the design come together.