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This week our readers have lots of — interesting — queries involving opening windows during winter in North Dakota, trying not to breathe during a micro-encounter and spraying a mask with ... oil?

With surgical care on the rise globally, researchers worry the energy-consuming procedures will have a negative impact on the climate. But they say there are ways to make them more energy efficient.

There are concerns that the new measures might not be easy to implement — or could even backfire.

It's hard tracking down data to see what progress is being made on the Sustainable Development Goals. Now there's a shiny new tool that does it for you.

A new report looks at the number of anesthesiologists around the world — and finds that many countries barely have 1 per 100,000. And some have ... zero.

A program in Ethiopia promises a farmyard incentive to families that don't marry off an underage daughter.

One of the most dangerous spots is Lake Victoria. And even the police who patrol the lake don't always know how to swim. But a life preserver may be on the way.

A study adds to evidence that it's a matter of blood and genes. "Hopefully, there will be huge medical implications," says one researcher.

They live in the lead-contaminated village of Kabwe, Zambia. A World Bank loan for lead cleanup offered reason for hope. A new report assesses the current situation.

People who've had dose 1 are wondering ... can I have a few drinks before dose 2 or will that muck things up? Also: Do you really understand the concept of "vaccine efficacy"? It's complicated!