According to a research done by the Harvard University, two search requests done on the search engine Google, produce as much carbon dioxide as boiling a kettle of water. Every time you do a search requests on Google, it produces 7 grams of CO2. A recent research, done by the research firm Gartner, claimed that IT causes 2 percent of global emissions nowadays. In total there are 200 million search requests done on Google every day, that’s 1,400,000 kg of carbon dioxide every day. Google replied to this research by claiming that every search request would just produce 0,2 gram of carbon dioxide. And, if you do the maths, that’s just 40,000 kg of carbon dioxide every day.
Previously, it has been calculated that worldwide 8.3 megawatt hours could be saved, if the home page of Google would be black instead of white.