The Met Office has bought four supercomputers from IBM to help it tackle climate change.
The power-hungry supercomputer produces 12,000 tonnes of carbon dioxide a year - and has made the Met Office one of the worst public buildings in Britain for pollution in a new green league table, according to the Telegraph.
John Hirst, Met Office chief executive, said, "In a world where the effect of extreme weather events is becoming more severe and the potential impact of global warming is becoming ever more apparent, the Met Office plays an increasingly vital role in researching and forecasting these events. The new supercomputer is an important step in delivering our strategic targets."
The supercomputer uses 13TBytes of memory and over 500TBytes of disk storage, making it the second fastest system in the UK, with the computing power roughly equivalent to 20,000 high-end PCs
Peak performance of 125 trillion floating point operations per second. By 2011, the total system is anticipated to have a total peak performance approaching 1 PetaFlop - equivalent to over 100,000 PCs and over 30 times more powerful than what is in place today. As part of the agreement, IBM will also provide a mid-life system upgrade, support and maintenance services during the five-year contract, the Met Office said.