The problem is not the current CO2 level.
The problem is: ##is the current CO2 level leading to climate change or is climate change causing higher [atmospheric] CO2 levels##
And:
Is a higher CO2 level sufficient, or is it possible, to cause runaway warming ?
IE: Is any feedback positive or negative.
The "warmists" say it is and that feedback is positive....however, they also said that clouds caused positive feedback.
The "skeptics" say it isn't.
Both sides admit that CO2 "traps" heat, one side says it is going to get worse, the other says it isn't, not by much.
CO2 has been much higher in the DISTANT past

(500 million to 3 million years)
but not in the recent past

(half a million years)
The problem is compounded by the intense political/financial establishment on the "warmists" side, which means that if (highly likely) they are wrong the financial cost, so far, of nearly one trillion dollars, will mean they will be lucky to avoid being lynched.
Since even stupid turkeys do not willingly vote for Christmas we (I) cannot expect scientists to vote for personal poverty.
And there lies the REAL problem....the subject is too personal to have an easy, or fast, resolution.
So, roll-on the "renewables" and power cuts......don't expect "fracking" to bring you cheap gas, because they are finding in the states that while it is cheap...it is too cheap.....there is not enough profit to provide funding for the required [future] research and planning, let along production.
AND this government has already said it will be sold to export.
Since they insist that the sun has no effect on climate change (apart from the problem of no sun = no climate) and that their models are right (part of the trillion....loads of super-computers) when they cannot even forecast the past given the present as an input ?
Quote:
That’s why I call my new book Watermelons — because it’s about zealots who are green on the outside, but in political terms, red on the inside. If only their views weren’t so influential, in schools, universities, in the media, in the corridors of power, the global economy wouldn’t be nearly in the mess it’s in today.
Read more:
http://www.dailymail.co.uk/news/article-2096277/How-green-zealots-destroying-planet.html#ixzz1lQQRn1Ay[the comments in this post are my personal views on the complex and chaotic subject of climate, changing, and t'ings]