Haze from cars and power plants is gray-white in true color images. It is difficult to pin-point a single source, but you can see where the haze is. Record your observations of dust, smoke, or haze in ...
If your research interests are focused on nitrogen contributions to your local water source from runoff, you should consider rainfall when making your observations. Runoff samples will be most ...
Nature asked the world’s largest health-research funders what they are doing to study a life stage experienced by half of humanity. Here is what some of them told us.