In 1989, amidst mounting scientific evidence, dozens of nations joined forces to sign a treaty aimed at halting the expansion of a massive hole in Earth’s ozone layer. Nearly thirty years later, the Montreal Protocol has done just that. But it has also done something its architects never intended. It has become one of…
New research has found that the United States’ reductions in air pollution have been stymied by the exponential increase of pollutants coming from Asia. As long as you don’t like breathing, that’ll be no big deal.
A plan to restrict private vehicles from Mexico City’s downtown hasn’t done enough to reduce air pollution, so the city is now asking twice as many cars to stay off the roads.
Marigolds are popular plants among city planners and commercial landscapers. They’re bright and cheery, they’re easy to grow, and when the bugs come calling, they have a really nasty surprise hidden in their roots.
Christian Friedrich Schönbein was a very good chemist who lived to the ripe old age of 70. In doing so, he defied the odds; he had a knack for putting himself in harm’s way for the sake of science.
The Montreal Protocol of 1987 placed strict controls on the release of ozone-depleting substances. A new study now shows what would have happened to the ozone layer in the absence of this critically important international treaty — and it wouldn’t have been pretty.
By making your house smell nice you are also making it filthy. Though it may make a house smell clean, secretly, most air fresheners fill the house with tiny particles of dust — all thanks to limonene.
Ever seen old tires, the rubber in them dried and deeply cracked? They were ripped apart not by the road, but by a greenhouse gas.
In December 1999, NASA launched the Terra satellite to collect climate data. It would be the first spacecraft in a fleet of 18 Earth-observing satellites that, over the last 15 years, have opened up a new era of exploration of our home planet. To celebrate, the space agency has compiled some of its most stunning gifs.
The latest measurements of the hole in the Ozone layer over the Antarctic put it at approximately the size of North America. Though that's certainly still a considerably-sized hole at 9 million square miles, NASA reports that the overall measurement has been holding roughly steady since 2010.
If you thought that the depletion of the ozone layer was a problems of the 90s, think again: according to new NASA research, the Earth's atmosphere contains an unexpectedly large amount of ozone-depleting chemical, decades after it was banned worldwide.
You remember this, right? Moldovan pop group O-Zone released "Dragostea din tei" in Romania in 2003, and it got really popular when it had its worldwide release in 2004. Then callow youth Gary Brolsma of New Jersey posted a video of himself lip syncing and dancing along to the song. Obviously, because it was 2004, he…
After a rainstorm, especially a rain storm that breaks a long dry spell, the world smells different. What causes that strange, clean, earthy smell? A few things that aren't so clean.
If we can't get in contact directly with any of the aliens that might live on the Milky Way's billions and billions of planets, then the next best option is to look for evidence that they have reshaped their worlds. And silly as it might sound, our best hope is that aliens use hairspray and central air.
In the ultimate cosmic cataclysm, two ultra-dense bodies collide. For less than a second, incredible amounts of super-charged particles explode forth. These blasts could wipe out most life on Earth...and it's probably happened dozens of times already.
A hole in Earth's protective ozone layer above the Antarctic has become an annual event for the last 25 years, greatly increasing the South Pole's exposure to ultraviolet rays. Now, the same thing is happening above the Arctic Circle.
Stop! Don't throw out those old, discarded skin cells! They may be protecting you from the deadly gas - ozone. Yes, they're only protecting you to a minute degree, but everyone should take every opportunity to put off dusting.
Check out the stark difference between these two satellite images, taken on March 19, 2010 and March 19, 2011. The left image shows much more ozone (in red) over the Arctic than the right image. What's happened?
If a medium-sized asteroid lands in the ocean, tsunamis won't be the only worry. Water vapor and sea salt thrown up by the impact could damage the ozone layer, leading to record levels of ultraviolet radiation that could threaten humanity.