The Kyoto Treaty does not undermine the United States sovereignty because it does not have anything to do with such. It was a treaty that asks committing State parties to reduce greenhouse gas emissions because global warming does exist and it is caused by CO2 productions done by human activities.
The federal government is composed of three distinct branches: legislative, executive, and judicial, whose powers are vested by the U.S. Constitution in the Congress, the president, and the federal courts.
Personally, I don't think so.
Every information we have is by principle, biased. We can never have a full picture on the issue (we don't live long enough to have ALL the information and all the other people's opinions) so this means that we only know a selection of relevant information. This selection biases our perception of the issue: so in this way, I think that we are bound to be at least a little bit biased.
