Articles

  • Robbins: Sea Surface Temperature and CO2

    Close examination of the small perturbations within the atmospheric CO2 trend, as measured at Mauna Loa, reveals a strong correlation with variations in sea surface temperatures (SSTs), most notably with those in the tropics. The temperature-dependent process of CO2 degassing and ab-sorption via sea surfaces is well-documented, and changes in SSTs will also coincide with…

  • Green&Soon: Are Climate Model Forecasts Useful for Policy Making?

    Effect of Variable Choice on Reliability and Predictive Validity For a model to be useful for policy decisions, statistical fit is insufficient. Evidence that the model provides out-of-estimation-sample forecasts that are more accurate and reliable than those from plausible alternative models, including a simple benchmark, is necessary. The UN’s IPCC advises governments with forecasts of…

  • Ato: Pitfalls in Global Warming and Climate Change Research

    Recent global warming and climate change studies frequently assume that the rise in atmospheric CO2 is entirely due to human emissions. In particular, the assumption is based on a figure of CO2 concentration of 280 ppm at the end of the pre-industrial period. However, this assumption reveals itself to be contradicted by an examination of…

  • W. A. van Wijngaarden and W. Happer: Radiation Transport in Clouds

    We briefly review the dominant role of clouds in Earth’s climate. The earliest observational studies of heat transfer through Earth’s atmosphere, for example, those of John Leslie around 1800, showed that clouds have a large effect on radiative heat transfer from Earth’s surface to space. Greenhouse gases also affect heat transfer, but much less than…

  • Aaslid: Climate Science versus Politics

    Starting with a critical look at the IPCC science, from the excellent First Assessment Report in 1990 and downhill to the latest Sixth Assessment Report with its claim that we have had no natural climate change since the pre-industrial era, we also take a closer look at the 2010 IAC critical evaluation of IPCC, as…

  • Cederlöf: The Temperature Fluctuations in Uppsala has Natural Causes

    The temperature record from Uppsala in Sweden starts already in 1722. This is one of the world’s longest temperature series available. A great job has been made to adjust and homogenize this data to be consistent over time, measurement locations and changed equipment. However, during the 20th and 21th century this temperature series has diverged…