Dr Jay Lehr and Tom Harris post at World Commerce Review: "Most of the periodic temperature increases and decreases observed in human history are average amount of the energy that we receive from the Sun. The mild heating and cooling per degrees Fahrenheit reflect changes in solar activity rather than exponential increase in temperature from 1880 to 1935 as the Littlre Ice Age ended. It decreased from 1935 to 1990, and has since levelled off. Temperature changes do not mirror emission changes."