This page is used for breaking news about climate matters. The monthly carbon dioxide concentrations and global, northern & southern hemisphere temperature anomalies are updated as soon as possible after they are available. Delays are usually due to the lateness of reporting by the Hadley Centre
ASYMMETRY AGAIN
This is old data and discussion, but left here for the moment. A more up-to-date discussion is given on page 51.
Data from GISS.NASA gives more evidence for any warming of the Earth not to be 'global.' This is a plot of the rises in mean temperature from 1951 to 2004 by zonal latitude. It is clear that most of the warming has taken place where the most fossil fuels have been used. This adds weight to our idea that initial warming from CO2 emissions have biased the global record. Models all expect warming at both poles and very little in the tropics. While some warming has occurred in the mid-latitude and tropical regions it is very obvious that the south polar region is cooling rapidly and that the majority of the warming has occurred in the region between 40N and 80N.
GLOBAL COOLING?
The global temperature has not exceeded the 1998 value since that year and the trend [from satellite and terrestrial data] is one of cooling. Various people and organizations have been vociferously claiming that the atmosphere/surface system is in a cooling phase that 'disproves' the connection with rising CO2 concentrations, the global temperature did rise somewhat in 2009. The graph shows the Hadley Centre values and those from the UAH satellite. The data are plotted on the IPCC predictions which are clearly significantly higher than those observed since 2005
The annual increases in CO2 concentration are shown below for the last four years and the first four months of 2010. The seasonal changes are very similar and there are similar increases annually in the concentration of the gas.
Claims that the temperature is decreasing are not supported by these data. That the trend is flat indicates that any warming from emissions of carbon is cancelled by some other [natural] cause. The extraordinarily high anomaly around 1998 was principally caused by an El Nino event that was due to upwelling of warmer water in the south-western Pacific Ocean.