What If Every Volcano on the Planet Erupted at the Same Time?

https://theextinctionprotocol.wordpress.com/2015/01/14/what-if-every-volcano-erupted-on-the-planet-at-the-same-time/

There are 1,500 active volcanoes on earth: both on land and in the ocean.

Now imagine if all of them erupted at once.

Every single day, somewhere between ten and twenty volcanoes erupt on our planet. According to The Extinction Protocol, an online radio show, scientists have reported that chances of every active volcano on earth erupting at the same time are very small. However, if this were to happen, the effects of this simultaneous blast would render our planet helpless to the effects many times more powerful than a nuclear winter says Parv Sethi, a geologist at Radford University in Virginia. In a word, an environmental domino effect would be triggered and we would not be able to stop it. 

From an event such as this our planet would be consumed by volcanic gas and ashes. 

While the explosions and outpourings of lava would be deadly to people living close by, the number of deaths would pale compared to those caused by the ensuing climate change. Sethi predicts that a thick layer of ash would blanket the Earth, completely blocking incoming sunlight. “The planet would be pitched into complete dark, and that is going to devastate photosynthesis, destroy crop yields and cause temperatures to plunge,” Sethi said. The ash would linger in the atmosphere for up to 10 years, he added.