Telegraph: Recent claims that two internet searches may increase your carbon footprint by as much as boiling a kettle are just a lot of hot air, says Matt Warman What is the environmental impact of computing? How much CO2 is emitted every time you search Google? And how many people even realise that the global information technology industry as a whole is as big, in carbon dioxide terms, as global aviation? That comparison would make Google the Heathrow or JFK of the internet — its …