A nonbinding resolution meant to signal congressional opposition to a carbon tax easily won House approval July 19, though with slightly less support than a similar measure two years ago.

The 229-180 vote on the resolution (H. Con. Res. 119) from House Majority Whip Steve Scalise (R-La.), which derides a carbon tax as “detrimental” to the U.S. economy, provides a snapshot of deep resistance to such climate policies in the House. Two members voted “present.”...