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With wildfires devastating mountain ecosystems across the western United States, their successful forest revegetation recovery hinges on, among other factors, an adequate lasting snowpack, according to new research.

Joining the global effort to curb air pollution, researchers have developed computational tools to accurately assess the footprint of certain organic atmospheric pollutants. Their simulation could help government agencies keep a closer check on human-made sources of carbon-based pollutants.

Both rare and commonly observed differences in the DNA letters strung along a person's chromosomes can explain about a third of the risk for being diagnosed with obsessive-compulsive disorder (OCD), according to a new study.

Companies in the digital technology industry are significantly underreporting the greenhouse gas emissions arising along the value chain of their products. Across a sample of 56 major tech companies surveyed, more than half of these emissions were excluded from self-reporting in 2019. At approximately 390 megatons carbon dioxide equivalents, the omitted emissions are in the same ballpark as the carbon footprint of Australia. The research team has developed a method for spotting sources of error and calculating the omitted disclosures.