Climate understanding of the past is based primarily on ice cores.  By studying information about Earth's climate and greenhouse gases  in past, scientists can understand better how temperature responds to changes in greenhouse-gas concentrations in the atmosphere and make better predictions about how climate will change in the future. 

Researcher have now identified regions in Antarctica they say could store information from as far back as 1.5 million years, almost twice as old as the oldest ice core drilled to date. 

If you have wondered why a disease like anorexia seems to impact primarily middle class white girls, a new paper in JAMA Pediatrics will shed some new light on the issue.

A new paper analyzed survey responses of 5,527 teenage males from across the U.S.and found that 17.9% of these young men are suffering under the yoke of female body expectations and are extremely concerned about their weight and physique. These boys were found to be more likely to start engaging in risky behaviors, including drug use and frequent binge drinking.

Every organism needs nitrogen to survive and grow and many organisms do not have the ability to obtain nitrogen from molecular nitrogen (N2), the major component in the atmosphere because they lack the nitrogen fixation pathway and have to rely on supply of nitrogen that has been fixed by others.

The availability of fixed nitrogen, in the form of ammonium, nitrite and nitrate, consequently often limits primary production in the environment. That's one of the reasons why many fertilizers are rich in fixed nitrogen.

While politics is not yet post-racial - every criticism of the politics of a minority member of government is labeled racism - dating seems to be, according to UC San Diego sociologist Kevin Lewis after looking at patterns of 126,134 US users of the dating site OkCupid.com

A rudimentary form of life,
Haloferax volcanii, part of the family of single-celled organisms called archaea that until recently were thought to be a type of bacteria, is found in some of the harshest environments on earth. Now researchers have determined it is able to sidestep normal replication processes and reproduce by the back door.

A new computer model says it can predict, by census block group, where burglaries are likely to occur.

Using the model developed by a University of California Riverside sociologist Prof. Robert Nash Parker, the Indio police department in souther California has developed interventions to address the problem, and can better anticipate hot spots of criminal activity and deploy officers accordingly. They say they have had an 8 percent decline in thefts in the first nine months of 2013 - too small a variation to attribute to just the model but it certainly hasn't hurt.