Proceedings of the National Academy of Sciences

The U.S. withdrawal from the Paris Agreement is prompting more than 1,400 mayors to make their own pledges.
A new study on human cooperation could shed light on why some take radical steps.
Onboard aggressiveness may be tied to class distinction, group dynamics, and destination. Today may be a good time to fly
The South American polka dot tree frog gives off an "intense greenish-blue glow" under UV light, scientists say.
I thought of several great women I know, unhappy at work or waiting for the phone-of-opportunity to ring... for months! Here
A recent peer-reviewed study published in the Proceedings of the National Academy of Sciences has confirmed what many fracking critics have argued for years: hydraulic fracturing for oil and gas can contaminate groundwater.
Another sign that climate change is a major contributor to the drop-off is the large increase in oaks, a tree the researchers
A Facebook study that manipulated your newsfeed to make you sad or happy was the most popular research of 2014, according
The Environmental Protection Agency is significantly underestimating the amount of methane that natural gas drilling operations
A recent groundbreaking study led by Chinese and American scientists, published in the Proceedings of the National Academy of Sciences (PNAC), documents how pollution from US- outsourced manufacturing in China blows back to California and the West Coast.
We need to study the impact of overfishing because fish are just one of many species in the ecosystem of the ocean. By destroying this ecosystem through a lack of understanding about how species are interconnected, we face the grim possibility that some of the sea's inhabitants will become extinct.
"It is possible that individuals who met their spouse online may be different in personality, motivation to form a long-term
The Tribune reports the trio of scientists "didn't fully understand the potential significance of what they had found" and
The lake had remained undisturbed until experts from Nevada's Desert Research Institute drilled through its protective 50
"It's an incredible experience," White said. "When we turned that block over, I can't tell you, I got chills up and down
WATCH: The findings are published in the April 25 issue of the Proceedings of the National Academy of Sciences. Scientists
This study from Stanford has documented yet again the total lack of credibility and expertise among climate skeptics, yet as long as Fox News and talk radio exist, the public will continue to be duped.