Probably has been fairly constant for a very long time and combined with the amount man adds we end up with the problem we are now having to deal with.
#10 | Posted by danni
And just exactly what is that problem ddan?
NO GLOBAL WARMING FOR 15 YEARS
New UK Met Office global temperature data confirms the world has not warmed in the past 15 years.
Analysis by the GWPF of the newly released HadCRUT4 global temperature database shows that there has been no global warming in the past 15 years, a timescale that challenges current models of global warming.