"And what has that "exhaustive" research proven?"

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Well, for one thing, Earth's atmosphere is warming...rather quickly.

And, through other "exhaustive research", greenhouse gases have NEVER been shown to NOT act as...ummmm...greenhouse gases.

And, through other "exhaustive research", humans have been shown to have substantially added greenhouse gases to Earth's atmosphere during the past few centuries.

So, unless you (or others) show objective evidence that demonstrates another relatively current forcing mechanism which would account for our planet's current warming trend, you (and others) are just burying your head in the sand, so to speak, and ignoring what has already been objectively demonstrated.