SCIENCE IN THE NEWS DAILY
EPA Issues New Soot Regulations
from the Christian Science Monitor
Responding to a lawsuit from 11 states, the Environmental Protection Agency is proposing new air quality standards to lower the amount of soot that can be released into the air
The Obama administration, facing strong resistance from congressional Republicans and industry officials, had sought to delay the politically fraught rule until after the election, but was forced to act by a court order. Critics, including officials representing the oil and gas industry, refineries and manufacturers, complained that overly strict rules could hurt economic growth and lead to job losses.
Soot, made up of microscopic particles released from smokestacks, diesel trucks, wood-burning stoves and other sources, contributes to haze and can burrow into lungs. Breathing in soot can cause lung and heart problems.
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VIDEO: How Hair Ice Grows
In 2013, American Scientist featured an article on odd ice formations on plant stems, including these curling ribbons of ice. One of the types of ice discussed in the article was hair ice—long, thin strands of ice that grow under quite specific conditions. The only problem is that a new study shows the theory put forth at the time—that gas pressure pushes the water out—isn’t correct... (click the link above to read more).
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