Burning the gas as waste contributes CO2 to the atmosphere, but burning the gas for productive reasons still produces that same CO2.
If it were burned for productive reasons, some of the thermal energy released would be stored in chemical bonds formed by the manufacturing of any number of things, but most of it would ultimately still be released into the atmosphere as waste heat during some stage of its use.
There is the angle that if more natural gas were used to generate electricity, then less coal burning would be required. That certainly is an argument for getting and burning more natural gas in power plants, but barring that possibility in the present due to poor logistics, we will still be burning that coal whether the natural gas is burned off as waste, or whether it is never pumped up in the first place.
We could also spend money taking the gas and shoving it back where it came from, but that really is not practical.
The bigoted attitude towards the mid-west is uncalled for, even if you don't like what is going on in North Dakota.