Final answer:
The 2013 IPCC report states that if there is a doubling of preindustrial level of carbon dioxide, there will be a "likely temperature increase" in the range of 1.1°C to 6.4°C.
Mathematical models have been designed to predict the likely increase in temperature due to increasing concentrations of carbon dioxide.
Step-by-step explanation:
The 2013 IPCC report states that if there is a doubling of preindustrial level of carbon dioxide, there will be a "likely temperature increase" in the range of 1.1°C to 6.4°C.
Mathematical models have been designed to predict the likely increase in temperature due to increasing concentrations of carbon dioxide.
These models take into account the uncertainties in the system and provide a range of possible outcomes.
For example, if we double the CO2 concentration from pre-industrial levels (280 ppm) to 560 ppm, the radiative forcing would be around 3.7 W/m². Multiplying this by the climate sensitivity of 0.8°C per W/m², we can estimate a temperature increase of about 3.0°C.