Tag Archives: AGW

That Heathrow temperature record ?

The record highest ever recorded July temperature by the Met Office at Heathrow Airport was given huge media coverage. The record was broken during one single heat spike that lasted just over 20 minutes between 14:06 and 14:30. What caused that heat … Continue reading

Posted in Meteorology, UK Met Office | Tagged | 49 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

Marotzke & Forster Revisited

Marotzke & Forster(2015) found that 60 year trends in global surface temperatures are dominated by underlying climate physics. However, the  data show that climate models overestimate such 60 year decadel trends after 1940. The recent paper in Nature by Jochem Marotzke & … Continue reading

Posted in AGW, Climate Change, climate science, Science | Tagged , , , | 28 Comments