Last month, like many before it, had heat that was above average, and temperatures during the second half of June broke or tied records in 173 locations.

Despite the massive wildfires that have swept the western U.S. in recent years, the region has barely begun paying down the huge fire deficit it has accumulated over the last 100 years.

Even in the Arctic, warmer summers create conditions where fires are more likely to ignite.

The deeper the burn the higher the carbon emissions.

Cigarette smokers are inhaling so much isocyanic acid that it spikes off the record of sensitive atmospheric instruments. Billions more are inhaling the pollutant from wildfires and wood-burning stoves.

This image is the best I've seen of the ongoing wildfires in Southern California (click on it for an enlarged version). It's taken from space at a slightly oblique angle, which helps give the image a three-dimensional feel. The knob in the coastline is the Palos Verdes Peninsula, which is...

Employment and wages increase in some sectors during a wildfire, but not enough to undo the social and economic damage a wildfire can cause.

What killed the dinosaurs? Ok, ok, we know an asteroid did it, roughly, but that made a comparatively small hole in the ground -- what actually killed them? We've heard lots about nuclear winter, global wildfires, all sorts of poisonous gases, and combinations thereof. But what if it was somet...