The Moon’s gravitational pull creates the tides, but its influence extends hundreds of meters below the sea surface too, influencing sensitive methane seeps in the seabed.
aerosols & particles
Wildfires May Exacerbate Asthma in the Western United States
A new study predicts that by the 2050s, wildfire smoke will cause the region to spend $850 million more every year to treat asthma.
Dust from Receding Glaciers May Have Major Atmospheric Impacts
New research is helping scientists understand how Arctic dust created by receding glaciers affects local air quality and global climate.
Comparing Impacts of CO2 and Particle Emission Reductions
Black carbon contained in airborne particles is often cited as a major factor warming the climate, but how much can California reduce climate change through reducing airborne particle concentrations?
Zero-valent Iron in the Oxidizing Atmosphere?
A comparative study of urban, semi-urban, and rural sites reveals that the species of atmospheric iron varies depending on location.
Pollution over the Tibetan Plateau Linked to Sea Ice Loss in the Arctic
New research suggests an atmospheric connection between Arctic sea ice melt and anthropogenic aerosol pollution over the Tibetan Plateau.
Have We Got Dust All Wrong?
Scientists are challenging conventional notions of how dust particles are aligned; “everything we’ve so far hypothesized about the impact of dust on the atmosphere might be misplaced.”
Halocarbons: What Are They and Why Are They Important?
CFCs and other halocarbons have long been known for causing an ozone hole over the Antarctic, but many of them are also powerful greenhouse gases.
Trans-Atlantic Dusts May Not Enrich Amazon as Much as Thought
New research indicates that nutrient loads delivered to South American ecosystems by dust originating in Africa are far lower than suggested in previous studies.
Saharan Dust Reaching the Americas Comes from El Djouf
The Saharan dust that crosses the Atlantic and fertilizes the Amazon may be coming from the El Djouf region between Mauritania and Mali, which is farther west than previously thought.