HFCs are much less harmful than the chemicals they replaced, but they have a strong heat-trapping effect that is contributing to global warming.
Author Archives: Scott Denning
A hot desert wind is carrying a massive cloud of Saharan dust into the southern United States this week.
The oft-repeated claim that the Amazon rainforest produces 20% of our planet’s oxygen is based on a misunderstanding.
Extreme cold weather can produce unusual phenomena, from so-called sea smoke to slushy ocean waves, caused mainly by the behavior of water at very cold temperatures.