Spirographs

Tim Osborn Ed Hawkins’ spiral animation of HadCRUT4 global temperatures deservedly captured sweeping attention, with a version even appearing in the Rio Olympics opening ceremony. While captivating, this style of graph really comes into its own for variables that have clear seasonal structure (in their trends, or in their absolute values unless only anomalies are […]

Information Tribunal decides on the IPCC Zero-Order Drafts

Tim Osborn [This article was subsequently revised and posted on the Climate Lab Book blog.] On 1 May 2015, the First-Tier Tribunal unanimously dismissed David Holland’s appeal for copies of the Zero-Order Draft (ZOD) of the IPCC’s Fourth Assessment Report (AR4). Their decision is available here. They consider Holland’s appeal to be “entirely without merit”. […]

Collections: history of climate science

Tim Osborn http://enthusiasmscepticismscience.wordpress.com/global-temperature-graphs/#Early Useful compilation of NH and/or global temperature estimates for last decades, centuries, millennium or more, including some early examples.

Climate monitor

Tim Osborn Unfortunately WordPress sometimes seems to cache hot-linked images, so the linked images shown here may not be the latest images available. Click the link to the sources for the latest. HadCRUT4 current year’s temperature GISTEMP current year’s temperature GISTEMP global monthly temperature anomalies University of Colorado global-mean sea level NOAA Laboratory for Satellite […]

Yamal, Polar Urals and Muir-Russell

Tim Osborn [This article was subsequently revised and posted on the UEA website.] Recent accusations (here, leading to more hot air across parts of the blogosphere, e.g. here) that the Climatic Research Unit (CRU) promoted tree-ring results that fit some preconceived view (e.g. of modern temperatures exceeding those during Medieval times) or curtailed other work […]

Collections: global temperature datasets

Tim Osborn Land temperatures CRUTEM.  Gridded near-surface air temperatures over land, put together mostly by CRU, led by Phil Jones, with contributions from UK Met Office Hadley Centre.  No spatial interpolation to make them complete, though earlier versions had a coarser grid and some infilling between neighbouring boxes so coverage appeared more complete than it […]

Collections: answering FAQs and challenges

There are some commonly held viewpoints about climate change that are plainly refuted by strong evidence.  Many of these “myths” about climate change have already been challenged by scientists and commentators.  This post is simply a collection of links to sites where these climate change myths have been discussed and also to sites containing climate […]