USGS CoreCast

Filter Total Items: 26
April 25, 2011

Microfossils Reveal Climatic History of the Gulf of Mexico

Proxy data such as tree rings, ice cores, and microorganisms are collected and analyzed by scientists to unlock past climate records stretching back thousands to millions of years ago.  This video podcast examines how scientists can decipher past climate from such records by focusing on a proxy calibration study in the Gulf of Mexico.  Microfossils recovered from the

April 20, 2011

Climate Connections: Visiting Students in North Carolina (Episode 1)

America has questions about climate change, and the USGS has real answers. In this episode of Climate Connections, USGS scientists answer questions gathered from middle and high school students in Mt. Airy, NC.

  • Do all scientists agree that climate change is occurring?
  • Could climate change impact fishing?
  • Will the climate change abruptly or
video thumbnail: Climate Connections: Promo Video
January 18, 2011

Climate Connections: Promo Video

America has questions about climate change, and the USGS has real answers. Climate Connections is a USGS video series in which some of the world's leading scientists answer climate change questions gathered across the Nation.

July 25, 2010

U.S. - Canada Arctic Expedition Surveying Extended Continental Shelf

American and Canadian scientists head north on a collaborative expedition to map the Arctic seafloor and gather data to help define the outer limits of the continental shelf. Each coastal nation may exercise sovereign rights over the natural resources of their continental shelf.

June 2, 2010

Effects of Urbanization on Stream Ecosystems

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.

February 10, 2010

Why Some Public-Supply Wells are More Vulnerable to Contamination Than Others

This video discusses how scientists have tracked what, when, and how contaminants may reach public-supply wells in four aquifers in California, Connecticut, Nebraska, and Florida.

video thumbnail: USGS Crews Measure Historic Flooding in Fargo, ND
March 26, 2009

USGS Crews Measure Historic Flooding in Fargo, ND

USGS scientists continue to monitor streamflow during the historic flooding taking place in Fargo, ND. This information provides critical information used to estimate flood dangers and helps protect lives and property.

video thumbnail: Radar is for the Birds
March 11, 2009

Radar is for the Birds

Doppler radar can be used for more than predicting the weather—it can be used to record migrating birds!

August 18, 2008

Tribal Canoe Journey for Troubled Sea: San Juan Islands

Short video clips and commentary as the Coast Salish Tribal Nation paddle through the San Juan Islands.

October 26, 2008

Earthquakes? Don't Freak Out--ShakeOut!

What if you knew that a magnitude 7.8 earthquake would happen in less than three weeks?

In this video interview, USGS earthquake scientist Dr. Lucy Jones explains that millions of Southern Californians will be preparing as if they do know, thanks to the Great Southern California ShakeOut.

September 16, 2008

Status of Grizzly Bears in Northwest Montana

The size and distribution of grizzly bear populations in northwest Montana has just been released by the USGS, so research biologist Kate Kendall bring us up to speed on the findings.

August 18, 2008

Tribal Canoe Journey for Troubled Sea: Part 2

The USGS and the Coast Salish Tribal Nation have partnered during the annual Tribal Canoe Journey to study and help improve resources of the Salish Sea.

This final episode in the Corecast Tribal Journey gives an overview of the journey, including a look at preliminary results.