Like most academics, biology researcher Dr Jose Pastor-Pareja relies heavily on Google’s search engine, using it “every 10 minutes”, he says.
But access to this resource is not guaranteed as he works at Tsinghua University in China – where the government has been tightening what are already among the strictest controls over the internet in the world.
China is notorious for its “Great Firewall” – the mass censorship and blocking of websites such as Facebook, Twitter and Google, plus news sites including The New York Times. It also routinely censors politically sensitive information across Chinese social media and websites.
Its push in recent years to further limit people’s abilities to circumvent controls on the internet have forced academics such as Pastor-Pareja to depend on tools such as virtual private networks (VPNs), which redirect users to offshore servers to bypass the censors.