Recently, a group called Texans for Natural Gas took the city of Houston to task for not including its namesake fuel in a proposed climate action plan. ‘No climate plan for Houston can be considered legitimate unless it utilizes an abundant, clean burning, and Texas made fuel like natural gas,’ the group’s online petition reads. It’s true that when used to fuel power plants, gas produces about half the carbon dioxide than coal, which is why using it as a bridge to transition more fully to renewable energy sources makes sense. Texas has enjoyed a boom in the production of natural gas thanks to hydraulic fracturing and horizontal-drilling technologies. But natural gas has an Achilles’ heel that must be addressed if the industry wants to be considered a viable part of any climate change strategy: methane emissions.