Outdoor air pollution is a major contributor to indoor air pollution -- but high-efficiency particulate air (HEPA) filters used in the home significantly reduce fine-particulate matter in the air compared with non-HEPA air filters.
articles
Funded By New Tax Credits, U.S. Carbon-Capture Network Could Double Global CO2 Headed Underground
With the right public infrastructure investment, the United States could as much as double the amount of carbon dioxide emissions currently captured and stored worldwide within the next six years, according to an analysis by Princeton University researchers.
Weathering Rates for Mined Lands Exponentially Higher Than Unmined Sites
Mountaintop removal, a coal-mining technique used in much of Central Appalachia, is an extreme form of surface mining, that excavates ridges as deep as 600 feet — twice the length of a football field — and buries adjacent valleys and streams in bedrock and coal residue. This mining activity has long been known to have negative impacts on water quality downstream.
Microplastics found deep in sand where turtles nest
Microplastics have been found deep in the sand on beaches where sea turtles lay their eggs.
NASA Study Untangles Smoke, Pollution Effects on Clouds
A new NASA-led study helps answer decades-old questions about the role of smoke and human-caused air pollution on clouds and rainfall. Looking specifically at deep convective clouds -- tall clouds like thunderclouds, formed by warm air rising -- the study shows that smoky air makes it harder for these clouds to grow. Pollution, on the other hand, energizes their growth, but only if the pollution isn't heavy. Extreme pollution is likely to shut down cloud growth.
Once majestic Atlantic Forest ‘empty’ after 500 years of over-exploitation
Five centuries of over-exploitation has halved mammal populations in South America’s Atlantic Forest – according to new research from the University of East Anglia.