v5.0 [Jan 28, 2015]
Since this version, the extension estimates CO2 emissions for trains and flights in several search engines, such as ClearTrip, Expedia, Google Flights, HipMunk, Kayak, Make My Trip, PriceLine, SkyScanner, Travelocity, American Airlines, Delta, Lufthansa, SpiceJet, TripAdvisor, UnitedAirlines, Eurostar, Ouigo, TGV Lyria, Thalys and Voyages-SNCF.
ifu Hamburg GmbH presents its new software: Umberto for Carbon Footprint.
