Tide Turning in Texas?

I grew up in Texas and still love the state, so I'm encouraged by this news on NPR's All Things Considered:

Texas is the country's largest emitter of global warming gases. But the state's political leaders say climate change isn't a problem and have blocked even minor efforts to address the issue. That has prompted the mayors of some of the state's biggest cities — including influential Republicans — to take the issue into their own hands.