Take Transient Climate Sensitivity = Equilibrium Climate Sensitivity/ 2 = ~1.5C
The TCS is the change in earth's average temperature over a short period in response to a doubling of CO2, where the ECS is the long term sensitivity that brings the earth's energy budget into equilibrium, something that will take hundreds to thousands of years.
Delta-T = (TCS) * ln(New CO2 Conc/Old CO2 Conc)/Ln(2) [See page 36 of David Archer's Global Warming: Understanding the Forecast]
Lets say that CO2 concentration has gone from 260mm to 400ppm, a change by a factor of 1.54.
The change in Temperature in the short term, due to CO2 increase, is (1.5)*ln(1.5)/Ln(2) = 0.93C
That will be affected by other greenhouse gases, and by volcanic dust, oceanic cycles and sulphate aerosols. But it is in the ballpark of what we are seeing.
Professor John Nielsen-Gammon explains this in the link I posted for you, but he used too many big words for your brain.
Carbon Dioxide and Temperature | Climate Abyss | a Chron.com blog
Grover Norquist Update: I Didn’t Mean it. « Climate Denial Crock of the Week“There is no conceivable way to add an energy or [value-added tax] to the burdens American taxpayers face that would not violate the pledge over time,” he said in a statement Tuesday.
Norquist appeared to be backing off comments he made to National Journal in a story published Nov. 12. He told the publication that he opposes a carbon tax, but said that coupled with income tax cuts it could be structured in a way that didn’t violate the pledge.
Norquist, like a lot of others deniers, is like Wiley Coyote running on empty air, until he realises there is nothing underneath him.