Volcanoes in themselves are an amazing part of the natural world. The surrounding region is suddenly rocked by earthquakes, lava flow, and explosions of gas and ash. It is the emissions that alter the atmosphere. In fact, emissions from volcanoes have been partially credited with creating our atmosphere in the first place.The earths atmosphere developed with volcanic emissions full of carbon dioxide, water vapor, nitrogen, methane, sulfur, and chlorine.    Read more »