Led by Richard Muller, a physicist at the University of California, Berkeley, the Berkeley Earth Surface Temperature study takes a different and more comprehensive approach than earlier assessments, but reaches the same basic conclusion: global warming is happening. (scientificamerican.com)
Ignoring that leads to an error that is larger than the effect being calculated, and biases the calculated change in Earth surface temperature upward. (realclimate.org)
Among others, I have requested hearings on new findings on the impacts of climate change on agriculture, new findings regarding the probability that extreme weather events are influenced by climate change, and new analysis of earth surface temperatures. (scientificamerican.com)