The primary impact volcanoes have on the environment is the release of volcanic gases into the atmosphere. Volcanoes release around 130 million tons of carbon dioxide each year, as well as toxic pollutants like sulfur dioxide, hydrogen sulfide, hydrogen chloride and hydrogen fluoride. However, volcanoes can also have a positive impact on the environment because the lava and ash produced by an eruption contain valuable nutrients for the soil.Know More
In addition to the danger volcanoes pose to local animals through the release of gas and pyroclastic material, their environmental impacts can be severe and long-lasting. The eruption of Krakatoa in 1883 created large tsunamis and threw enough ash and gas into the atmosphere to trigger short-term climate change. Global temperatures the following year were 2.2 degrees Fahrenheit below normal, and weather patterns were disrupted for five years. Particles in the atmosphere produced dark skies and vivid red sunsets in the years following the eruption, and some art historians suggest that the red sky in Edvard Munch's painting "The Scream" may have been inspired by the volcano's global effects.
When magma reaches the surface and hardens, it becomes a stone called tephra. Over time, tephra breaks down, releasing high levels of nutrients into the soil. Some of the most fertile areas on Earth are on the sites of ancient volcanic eruptions, allowing farmers to enjoy the legacy of geologic events long past.Learn more about Volcanoes
Volcanic eruptions involve the incursion of liquid magma into a physical environment, and the effects include major transformations, ranging from the formation of new land to the destruction of the viability of an existing environment. Just one example of the creation of new land comes from the Hawaiian Islands, which appeared as magma cooled into land after eruptions.Full Answer >
In spite of some heavily destructive properties, volcanoes play an important role in the environment. According to Oregon State University, volcanoes create new islands and land, provide habitats for pioneer species, create economic mineral deposits and generate beautiful landscapes.Full Answer >
Volcanic vents allow the Earth to release built up gases from the heat and pressure emanating from its core. Magma rises towards the surface, and as the pressure builds the magma seeks outlets through which to flow. The higher the pressure build-up, the greater the volcanic explosion.Full Answer >
No two volcanoes are exactly the same, as they all have differences in dimensions of their mountains and craters, as well as their relative frequency and type of eruption. Volcanoes come in cinder cone, shield and stratovolcano varieties.Full Answer >