Nanoparticles in air bad news for people
... geographical areas they have gone through and the atmospheric processes and environments they encountered en route before they were captured," Cheng said. The fine particles consist of tiny solid or liquid droplets or both suspended in the air. Air polluting particulate matter ranges in size from a few nanome...Forest management may mitigate global warming
...management may be used to restrain the increase of atmospheric carbon dioxide, a greenhouse gas. Many groups have proposed forest management as a simple way to offset global warming. More trees, they argue, will remove from the atmosphere more carbon dioxide, a gas plants use to grow and reproduce. But, numerou...Influence of gender on upper airway structure and function during obstructive sleep apnea
... Patients were allowed to fall asleep breathing at atmospheric pressure. During periods of stable stage 2 sleep, Pn was abruptly reduced, maintained for two breaths, and then raised back to atmospheric. Complete airway collapse was achieved in all subjects. Results Of Influence of Gender on Upper Airway Struct...Special section: Habitat fragmentation can amplify
... more vulnerable to airbornepollutants. A study of atmospheric deposition in deciduousforest fragments in New York State found that during thegrowing season, sulfate is about 20% higher at the edgethan in the interior. Moreover, nitrogen in the forestunderstory is about 45% higher at the edge than in the interio...Climate change could boost cotton yields
...evels by the year 2060. Along with climate change, atmospheric CO2 enhances plant growth bystimulating photosynthesis. In one scenario, adaptations to farmingpractices resulting from a lengthened growing season, elevated CO2-induced climate change, and enhanced plant growth were all factoredinto model simulation......t in the ocean has less impact on marine life than atmospheric carbon dioxide release or other global warming mitigation methods, such as direct injection and ocean fertilization. LLNL earth scientists Greg Rau, Ken Caldeira and Kevin Knauss will showcase the research, called carbonate dissolution, today at ...January media highlights: GEOLOGY and GSA TODAY
...een suggested as a cause of elevated sea level and atmospheric temperature during the Cretaceous "greenhouse" period, and this tectonic system appears to have contributed to those effects. Oceanic broad multifault transform plate boundaries . M. Ligi et al., Istituto di Geologia Marina, Consiglio Nazionale Ric...January media highlights-GSA Bulletin
...ion years ago, which could explain the increase in atmospheric oxygen at that time, which led to the development ...s of organic matter. This in turn may have lowered atmospheric carbon dioxide levels and led to the massive Permo-Carboniferous glaciation of Gondwana. The Round...High CO2 levels hamper nitrate incorporation by plants
Rising levels of atmospheric carbon dioxide that are associated with global war...ments, plants initially responded to a doubling of atmospheric carbon dioxide levels by assimilating 30 percent more carbon. But within a few days or weeks, this a...NSF grant to grow methane-producing microbes in lab
... greatly improve our ability to forecast trends in atmospheric methane concentration."......efore the Olympics as a model for potential future atmospheric releases in a largely populated area. NARAC is the national emergency response service for real-time assessment of incidents involving nuclear, chemical, biological or natural hazardous material. The centers main function is to support the Departmen...Sea levels likely to rise higher than IPCC predictions
...ivity, or whether it simply corresponds to natural atmospheric variations that occur on the order of decades, according to Serreze. "It isn't resolved yet. To be a responsible scientist you have to be a fence sitter on this issue," he said....Ecologist Gretchen Daily advocates saving the planet by making conservation profitable
...to oil companies that plant new forests to soak up atmospheric carbon dioxide or creating publicly traded corporations dedicated to making wildlife restoration profitable. Some members of the conservation community object to this profit-driven approach on moral grounds, Daily concedes, but the idea of protecting...URI oceanographer to assess impact of climate change on ocean ecosystems and biogeochemical cycles
...le, those who are responsible for designing global atmospheric and terrestrial carbon cycle models....... El Ninos, and fewer La Ninas. Working from global atmospheric data, the researchers have been trying to work out what this all means for local climate and rainfall across the southern part of WA. The most obvious fact to emerge is that there are now more dry days than before due to an increase in the presence o...'Mercury sunrise' phenomenon found in Antarctica
...growing season begins. The research indicates that atmospheric mercury rains down throughout the worlds coastal p...ased over the last few decades, even though global atmospheric emissions of mercury have declined during the last 20 years. The Alaska study also shows that some o...Pollen productionand allergiesmay rise significantly over next 50 years
...ercent more pollen than normal. Such a doubling of atmospheric carbon dioxide is expected to occur between 2050 and 2100. "The side effects of carbon dioxide, as well as its impact on heat budget and the water cycle, have to be taken very seriously," said Paul Epstein, MD, Harvard Medical School instructor in me...Hurricanes impact carbon sequestration by forests
...tly lessen the capacity of US forests to sequester atmospheric carbon, according to a recent analysis by a USDA Forest Service researcher. Global warming has been tied to increasing amounts of carbon dioxide released into the atmosphere from human activities ranging from clearing land to burning fossil fuels. At......put into a pressure chamber that simulates the low atmospheric pressure they would encounter at high altitudes. This approach isnt free of risk: its possible in some cases to suffer from decompression sickness (like the bends divers can get) or pressure trauma (burst eardrums, toothaches, etc.) when undergoing ....... - Scientists now have the capability to document atmospheric and climate change at locations nearly anywhere in the world, thanks to a new mobile atmospheric monitoring system developed at the Department of Energy's Pacific Northwest National Laboratory. Th...