One Alaskan scientist has been flying over the Arctic regularly for years. He has seen the ice disappearing. He doesn't need computer projections to warn him. He doesn't need models showing global cooling...or global warming. Shall we call it global disagreement?
Where once the airborne scientist saw ice, he now sees none. Imagine, actaul visual evidence of what is happening. The scientist also noticed a drastic decline in wildlife in the areas he flew over. Like zero polar bears or walruses.
The last three summers have shown the least amount of Arctic Sea ice on record. Of course we have records for less than two hundred years.
Carefully gleaning hope from any data release, the oil industry finds "mixed" message in Arctic ice data.
As we saw with tobacco smoking, with industrial asbestos use, Agent Orange, DDT, etc. the vested interests must always argue for more study and more data to avoid any direct regulatory action.