Yes it is, adammunich even gave you a nice video as an example.
Some gases have absorption peaks that happen to be where the atmosphere doesn't. That's especially true for greenhouse gases. They are named like this because they block the infrared radiated by the earth at around 290K, that aren't by the normal atmosphere.
That last sentence is equivalent to: we can see them with thermal cameras!
However the challenge is the amount of radiation: thermal cameras work because they collect infrared light over a large bandwidth. But gases typically absorb* over a tiny set of peaks. That means if you want contrast between gas/no gas you want to reduce the camera spectral bandwidth to be narrow. It wont see much, but it will do so with good contrast
A spectrometer typically does the opposite job, working with ultra narrow bandwidth to provide good spectral resolution: it needs a very sensitive sensor --> a way to achieve that is to use a single big "pixel".
But there are also spectro-imaging instruments that are basically a camera-spectrometer. These are expensive and used for science and security (think army, satellites, airborne) - well Fraser might get one for $5 on ebay
* Note that gases absorb IR light from a hotter object behind them, but if the object is colder you will see the emission from the gas itself.