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Michigan State University scientists have pinpointed a new source of nitrous oxide, a greenhouse gas that’s more potent than carbon dioxide. The culprit?

Tiny bits of decomposing leaves in soil.

This new discovery is featured in the current issue of Nature Geoscience, could help refine nitrous oxide emission predictions as well as guide future agriculture and soil management practices.

“Most nitrous oxide is produced within teaspoon-sized volumes of soil, and these so-called hot spots can emit a lot of nitrous oxide quickly,” said Sasha Kravchenko, MSU plant, soil and microbial scientist and lead author of the study. “But the reason for occurrence of these hot spots has mystified soil microbiologists since it was discovered several decades ago.”

“Online technologies have transformed communications in practically every aspect of our lives, and now we’re seeing they’re also allowing patients to take an active role in their care and get immediate access to their care provider,” said ASCO Expert Harold J. Burstein, MD, PhD, FASCO. “It’s impressive that something as simple as this not only improves quality of life, but in this case, helps patients live longer. I think we’ll soon see more cancer centers and practices adopting this model.”

Engineering researchers at The University of Texas at Austin have developed the most detailed and extensive local map of air pollution ever produced for an urban area, using specially equipped Google Street View cars to measure air quality on a block-by-block basis. This new hyper-local mobile approach to measuring air quality, which reveals that air pollution can vary dramatically even within a single city block, could address major air quality monitoring gaps worldwide.

Research presented at the ASM Microbe 2017 meeting by Bryan Sanchez of California State University–Northridge in Northridge, Calif., show that antibiotic-resistant bacteria are present in many ready-to-eat foods such as fresh produce and dairy products and may serve as a source of human exposure to antibiotic-resistant bacteria. About 2 million people become infected with antibiotic resistant-bacteria annually in the United States, resulting in over $35 billion in additional health care costs. Examining potential ways that humans can be exposed to antibiotic-resistant bacteria can help in understanding how to counter the threat.

A new study led by Northern Illinois University geography professor Wei Luo calculates the amount of water needed to carve the ancient network of valleys on Mars and concludes the Red Planet’s surface was once much more watery than previously thought.