Scientists on Saturday took the unprecedented step of staging marches in more than 600 cities worldwide in the face of what they see as a growing political assault on evidence-based knowledge. Thousands of scientists and their supporters attended March for Science events in such cities as Cape Town, London, Madrid and Seoul, as well as in Australia, Brazil, Canada and Nigeria. [...] The March for Science thrusted scientists, who generally avoid advocacy and whose work is based on impartial experimentation, into a more visible spotlight.

He wouldn’t put it this way, but Secretary of State John Kerry announced this week that the U.S. government will turn the screws on India over the country’s environmental record. In a joint event, the State Department and the Environmental Protection Agency declared that they will install air pollution monitoring devices on more U.S. embassies around the world and release their findings.