China's segregated school system hinders migrants

When Eli Friedman set out to write his second book, he intended to focus on the segregated education system in China and how it affected teachers' work, but quickly found that the project moved in an unexpected direction.

Researchers calculate lost value of landfilled plastic in US

With mountains of plastic waste piling up in landfills and scientists estimating that there will be more plastics by weight than fish in the ocean by 2050, the growing environmental challenge presented to the world by plastics ...

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