FARGO — Albedo is a word describing the portion of the sun’s radiation reflected from a surface. Most solar radiation passes directly through air with relatively little absorption. The reason it is ...

Despite the warm weather this week, I am imagining that the snow will linger for a while longer. I figure it will take a lot of solar energy to melt the drifts more than 3 feet deep in my field. So, ...

Considering the globe as a whole, high clouds and cloud-free scenes result in warming of the Earth's atmosphere, as less energy escapes into space than arrives from the sun. For low clouds, it's the ...