Texas state climatologist Nielsen-Gammon "believes that greenhouse gas emissions will cause temperatures in the state to rise an “annoyingly large” amount—somewhere in the neighborhood of three degrees by mid-century"

Industrial Evolution: Texas Monthly July 2012

What the data show is worrying. The unbearable temperatures Texas suffered through last summer could become the norm. Nielsen-Gammon believes that greenhouse gas emissions will cause temperatures in the state to rise an “annoyingly large” amount—somewhere in the neighborhood of three degrees by mid-century. (Adding in hard-to-predict events like volcanic eruptions, changes in solar activity, and El Niño or La Niña could push the mercury up or down a couple of degrees.) “You probably wouldn’t care much about a degree,” Nielsen-Gammon said. But “last summer, for example, was 5.2 degrees above normal, and people seemed to notice 5 degrees.”

...Hayhoe has no illusions that large numbers of Texans will suddenly come around to recognizing man’s role in creating climate change. But to some degree, she believes that the issue of what is causing our hotter and sometimes drier weather is irrelevant. Texas is getting warmer, and we need to deal with it. Which shouldn’t be impossible, given that Texans have been dealing with extreme weather since the state’s founding.