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Posts treating: "earth"

Wednesday, 26 November 2014

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Why are Past Surface Temperatures and CO2 Concentrations Important? 

State of the Planet [2014-11-26 20:36:50]  recommend  recommend this post  (22 visits) info
By burning fossil fuels for heating, electricity, transportation and other purposes, humans add CO2 to the atmosphere. Yet, by comparing ways in which the Earth’s temperature, CO2 concentration, sea level and ice sheets have changed in the past, we are able to learn valuable lessons about the climate system of today and

Geology Through Literature - A Connecticut Yankee in King Arthur's Court 

The Geology P.A.G.E. [2014-11-26 00:29:00]  recommend  recommend this post  (18 visits) info

The next story up in the Geology Though Literature thread is A Connecticut Yankee in King Arthur's Court by Mark Twain.This story is essentially a time travel story so there are several aspects of "historical geology" in play for the book. The first part involves the occurrence of a solar eclipse."I knew that the only total eclipse of the sun in the first half of the sixth century occurred on the 21st of June, A.D. 528, O.S., and began at 3 minutes after 12 noon. I also knew that [...]

Geosonnet 20 

Lounge of the Lab Lemming [2014-11-25 15:18:00]  recommend  recommend this post  (22 visits) info
The cratered lunar face preserves the song Of bolide roller derbies eons past But while the cold dead moon remembers long The rains of Earth reshape the surface fast. Did impacts peak four billion years ago? Or taper off through geologic time? Archean rocks are analysed to know micaceous balls were hot glass in their prime. This impact melt was blasted into space By comets larger than the

Is There Organic Matter on Mars? 

Gunnars Geo-Blog [2014-11-13 22:04:00]  recommend  recommend this post  (17 visits) info

     Organic matter recently detected by NASA’s robotic rover “Curiosity” is probably not due to contamination brought from Earth as researchers originally thought. A team of German and British scientists led by geoscientist Prof. Dr. Frank Keppler from Heidelberg University now suggests that the gaseous chlorinated organic compound – chloromethane – recently found on the “Red Planet”

Earth’s Age and the Cosmic Calendar 

History of Geology [2014-11-13 18:14:39]  recommend  recommend this post  (16 visits) info
During  the 19th century geologists realized that earth was quite older than previously believed, however this discovery posed an even greater question: what about the universe?  Did earth (like some fundamental creationists believed and still believe) predate the cosmos, were  earth and the cosmos created at the same time or came earth later? Early geologist

Climate change in 18 tweets! 

Climate and Geohazards [2014-11-11 13:19:38]  recommend  recommend this post  (18 visits) info
The latest IPCC report on climate change represents our most up to date understanding of the Earth’s climate, it’s changing behaviour and projections for the future. CGS scientist Professor Piers Forster, one of the lead authors of the new synthesis … Continue reading

Journey to the centre of the Earth - on a toilet roll 

Earth Learning Idea [2014-11-11 00:00:00]  recommend  recommend this post  (39 visits) info
Today's new ELI is 'Journey to the centre of the Earth - on a toilet roll; just how thin is the crust we live on?' We seldom stop to consider the true scale of many features of the Earth. This activity aims to enable pupils to visualise the thickness of the crust in relation to the rest of the Earth. It also helps them to appreciate the difference in depth between the oceanic crust and

More on earth dials 

Ontario-geofish [2014-11-09 17:18:00]  recommend  recommend this post  (26 visits) info
Previous post I'm still adding dials before I play.  I am convinced that oceanic currents are an independent factor, on a 10,000 year cycle, and they are intimately associated with continental aggregation. Look at this In the short years I've been looking at it, there have been minor variations with large consequences, such as no hurricanes, more typhoons, etc.  The picture is of

Subduction is not the end 

Metageologist [2014-11-09 11:29:31]  recommend  recommend this post  (33 visits) info
Subduction is just the beginning. Stuck on the surface of the earth as we are, it’s easy to think that when oceanic lithosphere is destroyed when it vanishes into the mantle. But this is wrong. The more we manage to peer … Continue reading

The Great Schools Geobakeoff – the results! 

Geological Society of London blog [2014-11-07 12:19:06]  recommend  recommend this post  (20 visits) info
          It’s only been a couple of weeks, but already Earth Science Week feels like a very long time ago! And it’s not over yet – it is at last (drumroll….) time to announce the results … Continue reading

Will Africa Finally Achieve a Green Revolution? 

State of the Planet [2014-11-06 19:46:15]  recommend  recommend this post  (19 visits) info
Earth Institute agricultural scientist Pedro A. Sanchez argues in a new essay that new developments in both science and politics give him hope that sub-Saharan Africa will be able to feed itself by 2050, even with a projected population by then of about 2 billion

Did You See This Space Picture?? 

Dan\'s Wild Wild Science Journal [2014-11-04 23:44:59]  recommend  recommend this post  (15 visits) info
You are on that blue and white ball in the left corner of the image. A rare pic of the Earth and Moon showing the backside of the

Study: NASA Sites Across U.S. Vulnerable to Climate Change 

State of the Planet [2014-11-03 23:49:40]  recommend  recommend this post  (21 visits) info

The National Aeronautics and Space Administration has been at the forefront of climate science, launching satellites that take the pulse of Earth’s land, oceans and atmospheric systems, gathering data on climate, weather and natural hazards. But the agency is increasingly vulnerable itself to the effects of a changing

How the air we breathe was created by Earth’s tectonic plates 

An Atom\'s-Eye View of the Planet [2014-10-29 13:07:05]  recommend  recommend this post  (21 visits) info
How is it that Earth developed an atmosphere that made the development of life possible? A study published in the journal Nature Geoscience links the origins of Earth’s nitrogen-rich atmosphere to the same tectonic forces that drive mountain-building and volcanism on our planet. It goes some way to explaining why, compared to our nearest neighbours,

Earth and Space Exploration Day at ASU this Saturday 

Arizona Geology [2014-10-24 02:32:00]  recommend  recommend this post  (21 visits) info

ASU hosting Earth and Space Exploration Day Saturday, October 25, 2014 (9 a.m. - 3 p.m.)  LOCATION: Interdisciplinary Science and Technology Building IV (ISTB 4), Arizona State University, Tempe Earth and Space Exploration day is a free annual fall event hosted by the School of Earth and Space Exploration (SESE) on ASU’s Tempe campus inside/outside ISTB 4. The SESE community offers

Geosonnet 15 

Lounge of the Lab Lemming [2014-10-21 15:18:00]  recommend  recommend this post  (17 visits) info

The ants which scuttle by between our toes Dissolve the min’rals of the Earth we tread The calcic feldspar, slipped under their nose Ten trillion insects weather, pit, and shred. The Himalayan mountains cool the Earth Though mangroves and the grasses do their part, But ants may do what was the work of turf By min’ralizing CO2, they start Evaporating seas in Neogene Drying the Earth

The 100 Geosites film quiz – the ANSWERS 

Geological Society of London blog [2014-10-17 18:43:01]  recommend  recommend this post  (24 visits) info
        Sooo, Earth Science Week is coming to a close and it’s time to announce the answers to our film quiz! Thanks to all that took part, the winner of the coveted USB stick is Helen! So, … Continue reading

Video Recap of our week during Earth Science Week 

Utah Geological Survey - blog [2014-10-17 01:48:10]  recommend  recommend this post  (18 visits) info

With Earth Science Week ending, we’ve compiled and created a little video recapping a successful ‪#‎EarthScienceWeek‬ here at the UGS! The Utah Geological Survey hosts hands-on activities for school groups (usually 4th and 5th graders) during October. Check it

Colored Sand in Geology 

Utah Geological Survey - blog [2014-10-16 20:22:10]  recommend  recommend this post  (24 visits) info The Earth formed more than 4.5 billion years ago. As the planet cooled, a new solid crust formed. The crust is only 8 kilometers thick under the oceans (oceanic crust) and about 32 kilometers thick under the continents (continental crust). READ

Earth Science Week: Ask a Geologist Live! 

Geological Society of London blog [2014-10-15 18:53:07]  recommend  recommend this post  (19 visits) info
          Day three of Earth Science Week is nearly over, and geowalks, events and talks have been going on across the country! Visit our website for what’s still coming up. Online, we’ve been holding Ask a … Continue reading | Impressum