A method and an unmanned surface vehicle for identifying and remediating a gas leak. The method includes detecting a first condition indicative of the gas leak with a first sensor and sensing environmental conditions near the gas leak with an environmental sensor. The method includes receiving, at a controller operatively coupled to the unmanned surface vehicle, signals representing the first condition indicative of the gas leak the environmental conditions near the gas leak. The method includes determining, by the controller and based on the first condition indicative of the gas leak and the environmental conditions near the gas leak, a navigation plan of the body of water including an ignition zone. The method includes positioning, based on the navigation plan, the unmanned surface vehicle relative to the ignition zone and discharging, by an ignition mechanism, an ignition source into the gas leak to ignite the gas leak.