The best guide I know to the climatological consensus is soft-spoken Kelly Redmond, who helps lead the influential and wide-ranging Western Regional Climate Center. The WRCC has done a great deal of work for the US Global Change Research Program on climate change issues, such as investigating the possibility that global warming could seriously degrade the Sierra snow pack on which much of California depends for water.
But don't let all that brainpower discourage you! Although a scientist, Redmond mostly speaks in commonsense English, has a bit of the poet in him, and has long worked to help ordinary folks (and reporters) understand climate issues.
For a story on fire in Southern California, I emailed some questions to Redmond. His answers were so helpful and illuminating, I expanded the interview to a wider discussion of how climate in the Western U.S. is changing.