Thanks guys,
The information you have given me has helped. Here is a question to get the grey matter working, i was reading on a skiing forum that volcanic eruptions has been linked with bumper ski seasons, sometimes worldwide but usually in the hemisphere in which they occur, i think it was mentioned that its the ash and sulphuric levels that cause it. Is it true or is it just a mere coincedence??
Posted on: 08 May 2008, 08:22:11 PM
Here is just a small quote from the
www.ski.com.au forum on the subject of volcanic eruptions affecting global weather
" '92 was pretty lame until that front in August / Sept.
"On June 15 (1991), millions of tons of sulfur dioxide were discharged into the atmosphere, resulting in a decrease in the temperature worldwide over the next few years.
The cloud over the earth reduced global temperatures. In 1992 and 1993, the average temperature in the Northern Hemisphere was reduced 0.5 to 0.6°C and the entire planet was cooled 0.4 to 0.5°C. The maximum reduction in global temperature occurred in August 1992 with a reduction of 0.73°C. The eruption is believed to have influenced such events as 1993 floods along the Mississippi river and the drought in the Sahel region of Africa. The United States experienced its third coldest and third wettest summer in 77 years during 1992.
Overall, the cooling effects of the Mount Pinatubo eruption were greater than those of the El Niño that was taking place at the time or of the greenhouse gas warming of the planet. Remarkable sunrises and sunsets were visible around the globe in the years following the Mount Pinatubo eruption."