The world is going through a warming period, There deemed to be conscience on that. The important question should be what, if any, of the warming, is caused by human activity.
Political Correctness blames it all on the "Evil Humans and Corporate greed," the evidence does not seem to support that contention. This week "The Intergovernmental Panel on Climate Change" blamed the rise in temperature on human activity, however that report was the Political evaluation of the scientific data. The scientific report will be released in a few months.
Despite the alarmist tone of this report, other studies seem, to contradicts it's findings. A recent U.N. study found that cow flatulence contributes as much atmospheric contamination as all human transportation. As for carbon dioxide, decaying biomass produces 3-hundred giga tons per year, while humans contribute just over one giga ton, or one third of one percent, of CO2 emissions.
While it is not true, supporters claim there is a "Scientific Consensus" that Humans are the cause of the warming. The problem with a consensus is they are rarely correct. Scientific Consensus has at different times contended the Sun revolved around the Earth, Bleeding cured disease, Whites were the superior race, and women could be possessed by the Devil and become Witches. The list of consensus that later were proved wrong is endless.
Despite the political posturing. It would be better to wait for real evidence of human influence before making changes that will cause adverse effects on the quality of life.
CO2 citation: Testimony before House Subcommittee in which both supporters and opponents of the human effect on global warming agreed on these figures.