For science we have been learning about glaciers. Glaciers are made up of ice, snow and rocks. when glaciers start to melt the water in it starts to leave and make the water levels higher. Glaciers form from when snow falls in 1 location over many years. Glaciers are important because they can improve drinking water. The last time we had no glaciers was 26 million years ago. The most deadly glacier in the world is the Thwaities Glacier. The human impact on our environment from climate change to global warming has caused this effect to happen. If we did not have glaciers the global sea level would go up to about 70 meters about 230 feet.
