The U.S. Environmental Protection Agency (EPA) released its final state implementation plan (SIP) Requirements Rule for implementing the 2015 National Ambient Air Quality Standard (NAAQS) for ground-level ozone. These requirements apply to states and tribes with nonattainment areas as well as the 13 northeastern states that currently comprise the Ozone Transport Region. This rule will assist our state and tribal partners in developing their implementation plans to meet the 2015 ozone standards, while providing the greatest flexibility possible.
articles
The US military is testing stratospheric balloons that ride the wind so they never have to come down
The idea of a balloon that floats high up above Earth indefinitely is a tantalizing one.
Enormous Growth By Cities To Post Huge Problems
An urban expansion forecast study co-led by Texas A&M predicts over 70,000 square miles of natural habitat could be lost to urban expansion between 2000 and 2030.
What is the highest point on Earth as measured from Earth's center?
Mount Everest, located in Nepal and Tibet, is usually said to be the highest mountain on Earth.
Ocean Warming
Professor discovers new pathway for heat transport in the ocean.
New Satellite View of Camp Fire as it Burned Through Paradise
Satellite images of the area around Paradise, California, on the morning of Nov. 8 captured the Camp Fire when it was only four hours old, yet had already burned halfway through the city.
