There have been times in our geological history when CO2 levels were 10X what they are today, yet warming was only slightly higher.

Unlike what you often read in simplistic media accounts, there are a lot of variables in climate and weather and temperature. It takes a lot of things going wrong to turn Earth into Venus and we have never come close. 

At the Goldschmidt geochemistry conference in Sacramento, geochemists discussed one such period, but they say we just got lucky - a vast mountain range formed in the middle of the ancient supercontinent, Pangea. 

CHICAGO (June 11, 2014) – New guidelines aim to reduce the prevalence of methicillin-resistant Staphylococcus aureus (MRSA), improve patient safety and prioritize current prevention efforts underway in hospitals. This drug resistant bacterium is a common source of patient morbidity and mortality in U.S. hospitals, causing nearly twice the number of deaths, significantly longer hospital stays and higher hospital costs than other forms of the bacteria.

You have seen lots of claims about probiotics - Activia and that stuff the sportscaster sells. You can save your money. Anything you are consuming with that kind of impact could just as easily be doing as much harm as good, but your yogurt is not making a difference, it is just a delicious placebo.

The microbiome is a system so turning one knob isn't doing anything meaningful but it's among the latest miracle health fads. A study in the Journal of Agricultural and Food Chemistry even says the benefits of good bacteria outweight the negatives of much-maligned white bread.

MADISON — An international team of researchers has shown that circulating avian influenza viruses contain all the genetic ingredients necessary to underpin the emergence of a virus similar to the deadly 1918 influenza virus.

Searching public databases, the researchers, led by Yoshihiro Kawaoka of the University of Wisconsin-Madison, identified eight genes from influenza viruses isolated from wild ducks that possessed remarkable genetic similarities to the genes that made up the 1918 pandemic flu virus. The 1918 or "Spanish flu" pandemic was one of recorded history's most devastating outbreaks of disease, resulting in an estimated 40 million deaths worldwide.

Illegal immigrants from Mexico who move to the United States often face barriers like poorly paying jobs, crowded housing and family separation. Such obstacles, and the migration process itself, may be detrimental to their health. Health even drops for people who enter the US legally.

Two studies presented today at the European League Against Rheumatism Annual Congress (EULAR 2014) have found a relationship between the dietary intake of monounsaturated fatty acids and cholesterol with disease activity in rheumatoid arthritis (RA) and osteoarthritis (OA) respectively.

In the TOMORROW study, daily intake of monounsaturated fatty acids as a component of the Mediterranean diet has been shown to be an independent predictor of remission in patients with RA; monounsaturated fatty acids might therefore be suppressing disease activity.

Matter-antimatter asymmetry is one of the greatest challenges in physics - we know antimatter is out there, because it can be created at places like CERN, but the universe seems to be composed entirely of matter.

Theories predict that exactly equal amounts of matter and antimatter would have been created in the Big Bang. So where did all the antimatter go?

New research undertaken by the ALPHA experiment at CERN's Antiproton Decelerator (AD) in Geneva is the first time that the electric charge of an anti-atom has been measured to high precision. Measuring the electric charge of antihydrogen atoms is a way to study any subtle differences between matter and antimatter which could account for the lack of antimatter in the universe.

On the island of Java, in Indonesia, the silvery gibbon, an endangered primate, lives in the rainforests and engages in behavior that's unusual for a primate - it sings long, complicated songs, using 14 different note types, that signal territory and send messages to potential mates and family.

Far from being a mere curiosity, the silvery gibbon may hold clues to the development of language in humans, according to a paper which asserts that by re-examining contemporary human language, we can see indications of how human communication could have evolved from the systems underlying the older communication modes of birds and other primates.

The quirky, tiny state of Vermont is 600,000 people who are simultaneously hard left and hard right. They voted in Bernie Sanders as a Senator, a guy who won't be a Democrat because that party is not socialist enough for him. They passed a law that put warning labels on GMOs - except for those in alcohol, restaurants, delis and cow feed, and thus basically only impacting poor people.

Now they have turned their keen, evidence-based eyes on climate change, claiming that if something isn't done, their skiing will be gone in 25 years, Maple syrup too, and heat stress will mean less milk for cows.

STFC’s Vulcan laser facility has recreated scaled supernova explosions to investigate one of the most energetic events in the Universe.

Supernova explosions, triggered when the fuel within a star reignites or its core collapses, launch a detonation shock wave that sweeps through several light years of space from the exploding star in just a few hundred years. But not all such explosions are alike and some, such as Cassiopeia A which is 11,000 light years from the Earth, show puzzling irregular shapes made of knots and twists.