Uncertainties
It's good to know that the earth's temperature has risen from the extremely cold late 19th century by 1 degree C. All kinds of record lows during that period.There really are a lot of agendas out there... including the EPA's. One needs to be very careful about which bandwagon one joins. Point: one factor has changed slightly in a very complex equation that is not fully understood... one factor that may or may not be a long-term issue.