Carbon dioxide isn't the only greenhouse gas that worries climate scientists. Airborne levels of two other potent gases — one from ancient plants, the other from flat-panel screen technology — are on the rise, too. And that's got scientists concerned about accelerated global warming.
The gases are methane and nitrogen trifluoride. Both pale in comparison to the global warming effects of carbon dioxide, produced by the burning of coal, oil and other fossil fuels.
2 greenhouse gases on the rise worry scientists
A powerful winter weather system — including an intense low-pressure "bomb cyclone" along the East Coast...
A major winter storm is set to sweep the nation this weekend, bringing snow, sleet, ice...
At least seven people are dead as the result of a monster winter storm in the...
The world has entered an era of “global water bankruptcy” that is harming billions of people,...
