A previous post Light Bulbs Disprove Global Warming presented an article by Dr. Peter Ward along with some scientific discussion from his website. This post presents an excerpt from Chapter One of his book which helpfully explains his journey of discovery from his field of volcanism to the larger question of global warming.
The Chapter is How I Came to Wonder about Climate Change. Excerpts in italics with my bolds.
Discovering a More Likely Cause of Global Warming
The evidence for volcanism in the ice layers under Summit, Greenland, consists of sulfate
deposits. Sulfate comes from sulfur dioxide, megatons of which are emitted during each
volcanic eruption. At first, I thought that the warming was caused by the sulfur dioxide,
which is observed to absorb solar energy passing through the atmosphere.17 My thinking
was influenced by greenhouse warming theory, which assumes that carbon dioxide causes
global warming because…
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