Google Changed Emission Calculations in Google Flights, Making Air Travel Look Cleaner
"Google launched a carbon emissions tool for its flight tracker last fall," remembers Gizmodo, "allowing consumers to see the individual emissions created by each flight they were browsing..." "But last month the tech giant quietly shifted the algorithm to exclude a crucial component of the overall greenhouse gas impact of air travel." The BBC reports: Flights now appear to have much less impact on the environment than before. "Google has airbrushed a huge chunk of the aviation industry's climate impacts from its pages" says Dr Doug Parr, chief scientist of Greenpeace. With Google hosting nine out of every 10 online searches, this could have wide repercussions for people's travel decisions. The company said it made the change following consultations with its "industry partners". It affects the carbon calculator embedded in the company's "Google Flights" search tool.... [I]n July, Google decided to exclude all the global warming impacts of flying except CO2. Some experts say Google's calculations now represent just over half of the real impact on the climate of flights. "It now significantly understates the global impact of aviation on the climate", says Professor David Lee of Manchester Metropolitan University, the author of the most comprehensive scientific assessment of the contribution of air travel to global warming. Flying affects the climate in lots of ways in addition to the CO2 produced by burning aviation fuel. These include the creation of long thin clouds high up in the atmosphere — known as contrails — which trap heat radiated by the Earth, leading to a net warming effect on our planet. These additional warming impacts mean that although aviation is only responsible for around 2% of global CO2 emissions, the sector is actually responsible for around 3.5% of the warming caused by human activity.
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