The water on your bedside table hasn’t had anything bad happen to it while you slept, but in the morning it tastes stale. Why? And how long can water stay out before it’s too bad to drink?
When you have a fire, you add water. Problem solved. Sometimes, though, adding water isn’t an option, which is why some fire systems involve adding materials that can decompose into poisons or smother everything in the building.
Measurements made by the Scripps Institution of Oceanography reveal that average CO2 levels in the first few days of 2015 are already above 400 parts per million. Experts say this could lead to a series of consecutive months above this worrying threshold.
NASA scientists have produced an ultra-high resolution computer model showing the ebbs and flows of carbon dioxide over the course of an entire year. It's both stunning and undeniably frightening.
Carbon dioxide levels recently reached an 800,000-year high, according to data gathered at the Mauna Loa Observatory. While concentrations of carbon dioxide have begun their seasonal decline from their May peak (which was just shy of 402 parts per million), the daily averages have stayed consistently above 400 ppm.
Just how does the carbon dioxide pollution of today compare with that of the past? Not very well, as this animated map of where and when carbon emissions have increased across the globe since 1850 reveals.
You've seen plenty of movies and TV shows where a person hyperventilates and is given a paper bag to breathe into. Can wood pulp actually help with hyperventilation? And why do so many doctors want the practice to stop?
The amygdala is popularly referred to as the brain's "fear center," due to the central role it plays in regulating the body's fear response. So pivotal is this small, almond-shaped structure's involvement, that S.M. (a woman whose amygdala has been ravaged by a rare condition known as Urbach–Wiethe disease), has been…
The Oracle at Delphi is referenced throughout Greek myths and history. Supposedly she was rendered psychic by Apollo. Practically, she was off her skull on gas that seeped out of the fissures of the temple in which she lived. Here is the scientific explanation for what caused this woman to utter her confused…
We've long touted the awesomeness of the cancer-free, ultra-long-lived, acid-resistant naked mole rats, and we even suggested that they'll inherit the Earth from us. But while we're still around, let's see if we can't benefit from these remarkable rodents.
Like most people, you probably spent a portion of your childhood with a bubble wand in your hand. And you probably know that bubbles are mercurial little guys — always zooming away and popping when you catch them. But there's little way to trap them without popping them. With carbon dioxide and a little practice, you…
The Agricultural Research Service produced scanning electron microscope images of what frost would look like on Mars. And it isn't water crystals that form this frost — it's carbon dioxide.
Climate change might turn lizards into geniuses, but fish won't be quite so lucky. All the billions of tons of carbon dioxide that enters the oceans each year is like alcohol for fish, turning them into risk-taking idiots.
Most climate change predictions have only examined the next hundred years. But now a new, even more long-term model suggests that temperatures could rise as much as ten degrees Celsius by 2300 — creating conditions not seen for 34 million years.
All around the Martian south pole, there are huge deposits of frozen carbon dioxide, better known as dry ice. In this image by NASA's Mars Reconaissance Orbiter, we can see huge dry ice pits... and the mysterious walls that encircle them.
Generally speaking, poop isn't pleasant, but it also isn't exactly lethal. But every year jellyfish unleash bowel movements so deadly that they can destroy entire marine ecosystems. A little odor doesn't seem so bad all of a sudden, does it?
In the 1200s, Genghis Khan and the Mongolian army built an empire that stretched from the Pacific Ocean to central Europe, ruling over a fifth of all land on Earth and over 100 million people. And all that conquering reshaped the Earth, reducing carbon dioxide levels enough to offset a year's worth of gasoline usage…
It's straight out of 1950s science fiction: an entire country connected by food-transporting pipelines, sending baked beans and smoked kippers sailing between London and Liverpool at 60 miles per hour. And it's arguably more sensible than what we're already doing.
Reducing our carbon footprints definitely won't be easy. Indeed, 20% of all carbon dioxide emissions come from people eating - and digesting.
Mars's thin atmosphere is now about 95% carbon dioxide, but when the planet's atmosphere is only 1/200th the size of Earth's, that doesn't mean very much. Now deeply buried minerals reveal Mars once had nearly Earth-like levels of carbon dioxide.