A new study of 60 million Americans—about 97% of people age 65 and older in the United States—shows that long-term exposure to airborne fine particulate matter (PM2.5) and ozone increases the risk of premature death, even when that exposure is at levels below the National Ambient Air Quality Standards (NAAQS) currently established by the U.S. Environmental Protection Agency. 

The Harvard T.H. Chan School of Public Health researchers found that men, blacks, and low-income populations had higher risk estimates from PM2.5 exposure compared with the national average, with blacks having mortality risks three times higher than the national average.

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Recent advances in technology have allowed scientists to probe the molecular nature of life, analyzing thousands of genes at a time and recognizing patterns of gene interaction. In a recent paper published in Proceedings of the Royal Society B, complexity scientist Samuel Scarpino and co-authors explore gene co-expression networks that have evolved to help plants withstand drought and cold. 

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Scientists from Trinity College Dublin and AMBER, the Science Foundation Ireland-funded materials science research centre hosted in Trinity College Dublin, have created ‘molecular cages’ that can maximise the efficiency of converting molecules in chemical reactions, and that may in future also be used as sensors and drug-delivery agents. The cages can be packed with different molecules, many of which have a specific task or functionality.

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India and Pakistan are among the most heavily irrigated nations on earth, producing enough wheat, corn, and other crops to feed their combined populations of 1.5 billion. But in South Asia’s breadbasket, which includes the Punjab region, farmers have pumped water out of the ground so heedlessly for so long that scientists now estimate aquifers there could run dry by mid-century. Add to that the disruptive effects of climate change and it’s clear that South Asian agriculture is facing a perilous future.

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More than 90% of the earth’s energy imbalance (EEI) in the climate system is sequestered in the ocean and consequently the ocean heat content (OHC) is increasing. Therefore, OHC is one of the most important indicators of global warming. During the past 30 years, many independent groups worked to estimate historical OHC changes. However, large uncertainty has been found among the published global OHC time series. For example, during the current surge of research on the so-called “hiatus” or “slowdown”, different scientific studies draw quite different conclusions on the key scientific question such as “Where is the heat redistributed in the ocean?” This motivates us to give a detailed analysis about global and basin OHC changes based on multiple ocean datasets.

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