What environmental effect does volcanic eruptions can cause?

Volcanoes can have both a cooling and warming effect on the planet's climate. ... Some of them, such as ash and sulphur dioxide, have a cooling effect, because they (or the substances they cause) reflect sunlight away from the earth. read more

Volcanic eruption can have lots of environmental effect. To mention few of them categorically: Air: Air pollution occurs when there is eruption ( not all volcanoes erupt e.g.fumaroles). Vesuvian and Vulcanian type volcanoes (the one with D most violent explosion ) brings out harmful gases like SOx, CO2. read more

Acid rain, which contaminates water sources, is another environmental effect of volcanism. Eruptions can impair air quality by creating a volcanic fog called "vog," which consists of sulfuric-acid droplets distributed by trade winds. read more

When volcanoes erupt, they emit a mixture of gases and particles into the air. Some of them, such as ash and sulphur dioxide, have a cooling effect, because they (or the substances they cause) reflect sunlight away from the earth. read more