Do masks work? And if so, should you reach for an N95, a surgical mask, a cloth mask or a gaiter? Over the past year and a half, researchers have produced a lot of laboratory, model-based and observational evidence on the effectiveness of masks.
The Conversation
Only a small percentage of people who hold extremist views ever actually commit acts of violence, but the findings of a survey by University of Chicago reveal how many Americans hold views that could turn them toward insurrection.
An internal Facebook report found that the social media platform’s algorithms enabled disinformation campaigns based in Eastern Europe to reach nearly half of all Americans in the run-up to the 2020 presidential election.
Plastics are very useful materials. They’ve contributed significant benefits to modern society. But the unprecedented amount of plastics produced over the past few decades has caused serious environmental pollution.