Google unveils search changes to placate EU

Google on Tuesday unveiled a series of tweaks to its European search engine results in an effort to avoid further fines from the EU's top anti-trust regulator.

In China, a link between happiness and air quality

For many years, China has been struggling to tackle high pollution levels that are crippling its major cities. Indeed, a recent study by researchers at Chinese Hong Kong University has found that air pollution in the country ...

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