smoke from volcanic eruptions can disrupt sunlight from reaching earth 's surface
eruption is not emergence. volcanic_eruption is emitting. volcanic_eruption is not emitting. volcanoes has violent_eruptions volcanic_eruption is discharge. sunlight has effect_of_heating_earth volcanoes has not violent_eruptions blocked_sunlight has powerful_effect_on_microclimate sunlight has not effect_of_heating_earth volcanic_eruption is not discharge.