Recently bought transatlantic flights through Google Flights and it gave better results than all the traditional players in the space (skyscanner, kayak, etc). It's not just something to pad out search results, they put some effort into it.

Also, for every single flight they have the mass of carbon emissions displayed right next to it? Seeing that huge figure (1 ton!) definitely made me more hesitant to fly. Could this be... an altruistic design decision? From Google?