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Senate Bill 3, which was championed by Lt. Gov. Dan Patrick, could have cost tens of thousands of people their jobs. Abbott said he would call a special session to debate the legislation further.

It's an unusual situation for the lieutenant governor, long viewed by GOP activists as a stalwart conservative responsible for driving the Legislature rightward.

The House granted its final approval to the amended version of Senate Bill 3 Thursday evening. It now goes back to the Senate, where Lt. Gov. Dan Patrick has indicated it is sure to pass, then on to Gov. Greg Abbott's desk.

The House on Wednesday approved the ban, after previously considering proposals to preserve the industry by tightening regulations.

Marijuana is in a hazy spot in Texas, legally speaking.

"Here in Colorado, as far as air quality concerns go, ozone is our largest pollutant of concern," said lead researcher Kaitlin Urso.