Your nuclear winter comparison is excellent. That is how exactly how volcano weather works.
Last winter AND the winter before were volcano weather winters. In 2009 we had two large eruptions in the North Pacific - Mt. Redoubt in Alaska and Sarachev Peak in Russia. That is why the summer of 2009 was so wet and cool and the last two winters have been extreme. Last year's Iceland volcano, Eyjafjallajökull, was a problem for airplanes, but too small to enter the stratosphere. It crossed Europe and rained out in Russia and East Europe.
Unfortunately, this year's Grímsvötn was big, so it will create some problems, just as the impact of the 2009 volcanoes is beginning to fade.
Your nuclear winter comparison is excellent. That is how exactly how volcano weather works.
Last winter AND the winter before were volcano weather winters. In 2009 we had two large eruptions in the North Pacific - Mt. Redoubt in Alaska and Sarachev Peak in Russia. That is why the summer of 2009 was so wet and cool and the last two winters have been extreme. Last year's Iceland volcano, Eyjafjallajökull, was a problem for airplanes, but too small to enter the stratosphere. It crossed Europe and rained out in Russia and East Europe.
Unfortunately, this year's Grímsvötn was big, so it will create some problems, just as the impact of the 2009 volcanoes is beginning to fade.