They PhDid it: Every year in CoS, dozens of PhD students defend their thesis and earn their doctorate, the highest university degree. In this series, we catch up with some new doctors to find out about their experience of doing a PhD in CoS, what made them embark on the intense four year journey and what plans they have for the future. First up is volcano researcher Dr Weiran (Alex) Li from the Earth Observatory of Singapore (EOS). 

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