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Effects of Urbanization on Stream Ecosystems

January 17th, 2012 | Comments Off | Posted in Geology.com

“Development can have negative effects on streams in urban and suburban areas. As a watershed becomes covered with pavement, sidewalks, and other types of urban land cover, stream organisms are confronted with an increased volume of storm water runoff, increased exposure to fertilizers and pesticides, and dramatic changes in physical living spaces within the stream itself. In this episode, USGS scientist Jerry McMahon describes two take home messages for managers.” Quoted from the USGS video release.

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Connecting People and Urban Streams

January 15th, 2012 | Comments Off | Posted in Geology.com

Faith Fitzpatrick outlines the importance of habitat to the health of streams and shows examples of connecting people to urban streams through rehabilitation efforts across the USA.

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Methane Is Ubiquitous in Shallow Groundwater

January 10th, 2012 | Comments Off | Posted in Geology.com

An article published by the Oil and Gas Journal shows that methane was ubiquitous in shallow groundwater prior to oil and gas drilling in Susquehanna County, Pennsylvania .

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Law of the Sea Website

January 9th, 2012 | Comments Off | Posted in Geology.com

The U.S.

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Florida Python Invasion

January 8th, 2012 | Comments Off | Posted in Geology.com

Discarded pet pythons have multiplied and established a strong presence in the Everglades, causing lots of problems for people who work and live in the area. USGS is finding that their ability to survive salt water might allow them to expand their range into the Florida Keys.

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Ohio Injection Well Temporarily Closed

January 4th, 2012 | Comments Off | Posted in Geology.com

The Ohio Department of Natural Resources has temporarily shut down a waste injection well that is suspected to have triggered earthquakes . The state has nearly 200 other injection wells that have not been associated with seismic activity.

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High Plains Aquifer: Water Level Changes

December 27th, 2011 | Comments Off | Posted in Geology.com

“ Water -level declines began in parts of the High Plains aquifer soon after the beginning of substantial irrigation with groundwater in the aquifer area.

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Meteorite Impacts Trigger Avalanches on Mars

December 22nd, 2011 | Comments Off | Posted in Geology.com

“When a meteorite careens toward the dusty surface of the Red Planet , it kicks up dust and can cause avalanching even before the rock from outer space hits the ground…” Quoted from the University of Arizona press release.

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Kepler Discovers Earth-Size Planets

December 22nd, 2011 | Comments Off | Posted in Geology.com

“ NASA ’s Kepler mission has discovered the first Earth-size planets orbiting a sun-like star outside our solar system. The planets, called Kepler-20e and Kepler-20f, are too close to their star to be in the so-called habitable zone where liquid water could exist on a planet ’s surface, but they are the smallest exoplanets ever confirmed around a star like our sun.” Quoted from the NASA press release.

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Smallest Black Hole?

December 19th, 2011 | Comments Off | Posted in Geology.com

An international team of astronomers has identified a candidate for the smallest-known black hole using data from NASA ’s Rossi X-ray Timing Explorer.

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