Tag Archives: IPCC

Carbon Recycling

The carbon cycle can be rather confusing as there are at least 3 totally separate processes at play, each occurring on different time scales. Here we show that it is just geological processes that result in a ‘long tail’ as the atmosphere … Continue reading

Posted in AGW, Climate Change, climate science, Science | Tagged , | 18 Comments

A Ghost from the Past

I have located an original version of the Global Historical Climatology Network (GHCN) published around 1990. It contains raw temperature data from 6039 weather stations around the world. Quality control procedures corrected a few impossible values mainly due to typing mistakes, and removed any duplicate data. Otherwise … Continue reading

Posted in AGW, Climate Change, climate science, Science | Tagged , , | 51 Comments

The Logical Fallacy behind ‘Representative Concentration Pathways’

Representative Concentration Pathways (RCPs) used in AR5 are future projections of greenhouse emissions according to different mitigation scenarios. So for example  there is a ‘business as usual’ high emission scenario (RCP8.5) and a midrange mitigation emissions scenario (RCP4.5). CMIP5 model projections are … Continue reading

Posted in AGW, Climate Change, climate science, IPCC, Science | Tagged , , | 6 Comments