I think your faith in anything that smacks of technology or science is well meaning but you are going to be disillusioned in due course. First of all, "groups" do not agree or disagree, and even if they do it is a policy decision not a scientific one. Secondly, the people who make up these groups you trust so deeply are human beings who have their jobs and careers to protect and advance. If you have been following this issue as closely as you seem to be, you are well aware that already, for a reputable scientist to publish good solid data which leads to skepticism, is to risk killing his career.
This is a political issue, not a scientific one, as the Czech president said last week. Sad--but reality, so deal with it. Science is playing a distant second fiddle right now, and will be until the debunkers marshall overwhelming proof and the GW enthusiasts' predictions continue to fall flat.(In case you missed it, the IPCC's first round of predictions failed completely--that's why they came up with new ones!) In the meantime be of good cheer-- the world is not going to fry or drown.
>>This is a political issue, not a scientific one, as the Czech president said last week. <<
It surely has become a political issue.
But man choosing to politicize something doesn't change whether the seas are rising and the deserts are expanding.
Al Gore cannot speed it up and deniers can't slow it down.
That why I focus on data from people like NASA who have been studying glacier mass balance long before global warming was a political issue.