Geoporcast

Magnitude 7.0 Earthquake Strikes Haiti

Wed, 13 Jan 2010 08:40:26 CET

por Geopor .

from USGS CoreCast by corecast@usgs.gov (U.S. Geological Survey - CoreCast Team)

On January 12, 2010, Haiti was struck by the most violent earthquake in a century.
Michael Blanpeid, associate coordinator for the USGS Earthquake Hazards Program,
answers questions about the earthquake, its severe shaking, and the possibility of
additional hazards, such as landslides and a tsunami.

audio:(Áudio MP3)



Haiti earthquake tectonic summary:
http://earthquake.usgs.gov/earthquakes/recenteqsww/Quakes/us2010rja6.php#summary

Did you feel it ?

Climate change (4)

Mon, 16 Mar 2009 19:38:12 CET

por Geopor .

Slight Climate Changes May Trigger Abrupt Ecosystem Responses(Áudio MP3)
from USGS CoreCast by corecast@usgs.gov (U.S. Geological Survey - CoreCast Team)

This is the third and final installment of a three-part series on climate change. Slight changes in climate may cause abrupt changes in ecosystems that are not easily reversible. Some of these responses, including insect outbreaks, wildfire, and forest dieback, may adversely affect people as well as ecosystems and their plants and animals. USGS scientist Colleen Charles discusses a new report on the impacts of a warming world on ecosystems.

Climate change (3)

Mon, 02 Mar 2009 22:23:43 CET

por Geopor .

(audio(Áudio MP3) )

by corecast@usgs.gov (U.S. Geological Survey - CoreCast Team)

Attention citizen scientists: We need your help watching the way the world changes!

For nature, timing is everything. So how does climate change affect the timing of things like flowers blooming and animals migrating, and why is this so important?

Learn more, and find out how YOU can help us by observing the world around you from USGS scientist Jake Weltzin, Director of the National Phenology Network.

Estranho estegossauro descoberto em Portugal (Miragaia longicollum)

Wed, 25 Feb 2009 19:28:41 CET

por Geopor .

Foi recentemente descoberto e cientificamente estudado um novo e estranho estegossauro, que se diferencia pelo facto de apresentar um pescoço longo, com pelo menos 17 vértebras cervicais. O seu nome é Miragaia longicollum (novo género e espécie).

Consultar artigo científico: Proc. R. Soc. B. – Mateus et al. 2009

200 anos de Charles Darwin

Sun, 15 Feb 2009 00:29:36 CET

por Geopor .

Polegarcast(Áudio MP3) -5

Fonte: Polegaropositor (Brasil)