5 tips from pediatric care for teachers wearing masks

As governments around the world debate the conditions for reopening schools, some regions have mandated that teachers wear masks when school resumes. Concerns have been expressed about loss of learning opportunities for linguistically ...

A twist in the story of volcanic eruptions and mass extinctions

An emerging scientific consensus is that gases—in particular carbon gases–released by volcanic eruptions millions of years ago contributed to some of Earth's greatest mass extinctions. But new research at The City College ...

page 1 from 10