http://www.newscientist.com/article/dn21074-sceptical-climate-scientists-concede-earth-has-warmed.html wrote:
A group of scientists known for their scepticism about climate change has reanalysed two centuries' worth of global temperature records. Their study largely confirms previous ones: it finds strong evidence that Earth is getting hotter.
"The valid issues raised by [climate] sceptics, when addressed fully and in detail, do not significantly change the answer," says lead author Richard Muller of the University of California, Berkeley. In a testimony to the US Congress earlier this year, Muller questioned whether global temperature records showed a significant warming during the 20th century.
[...]
BEST concludes that land temperatures have risen by 1 °C since the 1950s. This is largely in line with the three existing global temperature records: GISTEMP, maintained by NASA, the US National Oceanic and Atmospheric Administration's GHCN and HadCRU, kept by the UK Met Office. The 1 °C of warming reflects warming above land masses only, so is not yet a truly global estimate.
"The valid issues raised by [climate] sceptics, when addressed fully and in detail, do not significantly change the answer," says lead author Richard Muller of the University of California, Berkeley. In a testimony to the US Congress earlier this year, Muller questioned whether global temperature records showed a significant warming during the 20th century.
[...]
BEST concludes that land temperatures have risen by 1 °C since the 1950s. This is largely in line with the three existing global temperature records: GISTEMP, maintained by NASA, the US National Oceanic and Atmospheric Administration's GHCN and HadCRU, kept by the UK Met Office. The 1 °C of warming reflects warming above land masses only, so is not yet a truly global estimate.
The papers have not yet been peer reviewed, but this seems like progress to me. Thoughts?