News From the Field
The ups and downs of early atmospheric oxygen
February 19, 2014
The period of extended low oxygen, which spanned from roughly 2 to less than 1 billion years ago, was a time of remarkable chemical stability in the Earth's oceans and atmosphere. A University of California, Riverside, team of biogeochemists reports that oxygen was much lower than previously thought during this important middle chapter in Earth history, which likely explains the low abundance and diversity of eukaryotic organisms and the absence of animals.
University of California, Riverside
The National Science Foundation (NSF) is an independent federal agency that supports fundamental research and education across all fields of science and engineering. In fiscal year (FY) 2016, its budget is $7.5 billion. NSF funds reach all 50 states through grants to nearly 2,000 colleges, universities and other institutions. Each year, NSF receives more than 48,000 competitive proposals for funding and makes about 12,000 new funding awards. NSF also awards about $626 million in professional and service contracts yearly.
Get News Updates by Email
Useful NSF Web Sites:
NSF Home Page: http://www.nsf.gov
NSF News: http://www.nsf.gov/news/
For the News Media: http://www.nsf.gov/news/newsroom.jsp
Science and Engineering Statistics: http://www.nsf.gov/statistics/
Awards Searches: http://www.nsf.gov/awardsearch/