Monthly Archives: June 2011

A 60 year oscillation in Global Temperature data and possible explanations

Abstract: A temperature variation with a time period of a few decades has been previously reported [1] and observed in SST data. In this post,  a 60 year  oscillation with an amplitude of 0.1C is identified in the HadCrut global … Continue reading

Posted in Climate Change, Physics | Tagged , | 6 Comments

IPCC Predictions (2007 report) compared to data

Following the comparison of the latest global temperature data with the first IPCC predictions made 21 years ago in 1990 here, I received some valid criticism and suggestions. One in particular was that I should have used the latest report since … Continue reading

Posted in Climate Change, Physics | Tagged , | 10 Comments

Logarithmic dependence of temperature on CO2 levels

In this post I shall assume that rises in CO2 concentrations  are responsible for all observed increases in global surface  temperatures since before the Industrial Revolution. I shall ignore any other mechanism which has been proposed as a  possible natural … Continue reading

Posted in Climate Change, Physics | Tagged , | 12 Comments

1990 IPCC predictions confront the data

The latest global temperature measurements are available for both satellite data [3] and for the Hadley CRU temperature data [2], so I thought it would be interesting to compare these with the predictions made in 1990 by the first  IPCC … Continue reading

Posted in Climate Change | Tagged , , | 73 Comments