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The Past as Prologue – Michael Mann

Dr. Michael Mann is going to give a talk at the CUNY Graduate Center, Thursday May 9th. The talk will be on the 4th Floor in the Science Center, room 4102. This talk will start at 530pm. As usual, after the talk we’ll have an informal reception.

Michael Mann

Penn State University Climatologist Michael Mann. After: Physicist and climatologist Michael Mann. Photograph:

Michael Mann is a well known climate researcher who’s 1998 publication “Global-scale temperature patterns and climate forcing over the past six centuries” (pdf) is the source of the famous (well, famous as statistical graphs go) “Hockey Stick” graph.




The Hockey Stick Graph. After IPCC TAR WG1 (2001) Figure 5.

A version of the “Hockey Stick Graph”., showing temperatures more or less stable for the past millenium, and then sharply spiking upwards in the modern era. After IPCC TAR WG1 (2001) Figure 5. 


The subject of the talk, however, is “The Past as Prologue”. Dr. Mann will review work over the past decade aimed at establishing the nature of, and factors underlying, patterns of large-scale climate variability in past centuries.  He will discuss evidence from proxy climate reconstructions spanning the past millennium, the comparison of proxy reconstructions with simulations with climate model simulations forced by past natural and anthropogenic forcing, and results from climate modeling experiments in which proxy evidence is assimilated directly into coupled ocean-atmosphere model simulations. He will also discuss recent work suggesting the possibility that equilibrium climate sensitivity may have been underestimated in some past studies comparing model simulations and paleoclimate reconstructions.


This will be a moderately technical talk, which is appropriate since the students that organize the GEOS talks as PhD candidates within the Earth & Environmental Sciences program. However, Dr. Mann has explained that he expects to talk about other issues related to his research. So non-academics are certainly welcome and can expect an exciting talk!

If you can’t make it to the Grad Center for the talk, you can also check it out on our livestreaming channel:


Click here for a Flyer with more information (pdf)

Antarctic Ice Volume Changes

Our Sept. 6th GEOS talk was from Dr. Stephen Pekar, he gave a brief overview of the history of the Ocean Drilliing program (from the time of the GLOMAR Challenger to today’s mega-research vessel, the Chikyu), followed by a wonderfully detailed discussion of changes in Antarctic Ice, with particular focus on how we know what we know about those ice changes.

Past Climate and Ice-Volume Changes in Antarctica: Looking back to our FutureOpening Slide of Dr. Pekar’s presentation: Past Climate and Ice-Volume Changes in Antarctica: Looking back to our Future


“The Ocean Drilling Program is the most successful international scientific program in the history of the world” and compares to NASA, which, Dr. Pekar noted, is a US-alone program.

To dispel any doubt that sedimentologists and stratigraphers deal with important and big issues in science,  Dr. Pekar showed a whimsical but scientific reconstruction of Lady Liberty up to her neck in water in NY Harbor (with sea-level comparable to what is was before the formation of the Antarctic Ice Sheet). Reconstructions of Earth’s atmosphere in the past also showed that the last time we had atmospheric CO2 levels comparable to the IPCC estimates for 2100 AD was more then 25 million years ago, and that the atmosphere has changed faster in the past 100 years than it has in maybe the past 5 million, all of hominid history.

Diving into some of the nitty gritty of paleo-climate/paleo-oceanographic methods, Dr. Pekar talked about the critical role of the  O-isotopic system in determining past ice volumes, the Mg/Ca temperature paleothermometer, and, an area he’s something of a pioneer on, the use of 3D backstripping in determining eustatic sea-level changes. He also discussed in some detail the “Late Oligocene Conundrum”, wherein it appeared that CO2 and Climate had decoupled for a period millions of years ago, and it’s ultimate resolution (there were issues of sample bias, with particular respect to the paleo-depth of the recovered proxies).

To wrap up this enlivening and scholarly discussion, Dr. Pekar also included photos from his latest field expedition, where he was one of the ship’s sedimentologists aboard the famed JOIDES Resolution, for the 2010 Wilkesland expedition. Most geology students are well aware of the exciting scientific voyages of the globetrotting JR, but work in the Antarctic added an extra element of “excitement”, evidenced in Dr. Pekar’s photos: 40 foot waves crashing over the ship’s bow. Despite working in inclement conditions, the crew of the JR was able to obtain some fascinating drill cores from the floor of the ocean, including a few sections that qualify as not just high resolution, but ultra-hi resolution, with thick zones filled with annual varve deposits of sediment, akin to obtaining a tree ring record, but from the bottom of the ocean, off of Antarctica, as one researcher noted.

This type of exciting work and command of the science involved is why Dr. Pekar, as he told me, currently has 9 students working on research projects in his lab at Queens College. Our group was excited to hear about his research, and this definitely set a standard for academic rigour in talks for the semester.

Dr. S. Pekar on ancient changes in Antarctic Ice Volumes

Our first talk for the Fall 2012 semester will be a great one, from Prof. Stephen Pekar on ancient changes in Antarctic Ice Volumes.  Prof. Pekar is a researcher at the Lamont-Doherty Earth Observatory, as well as an instructor at CUNY Queens.

The talk will begin at 5:30 on Thursday, September 6th, in the Graduate Center, in the 4th Floor Science Center (Room 4102).


Dr. Pekar is heavily involved with the Integrated Ocean Drilling Program and the Antarctic Drilling Program (ANDRILL) and has served on expeditions to the Antarctic, where ocean floor sediments, including important proxies for past climate, have been retreived. Prof. Pekar studies the make-up and stratigraphy of these materials in order to better understand changes in the all-important Ice Volume of the Antarctic Ice Sheets. At points in Earth’s past, the Antarctic was ice-free, but of course today the continent is layered in a thick sheet of ice. The stability of this ice sheet is a terribly important question when it comes to predicting future changes in sea level. In the Mesozoic, when both poles were ice-free, the middle of the United States was submerged under the great “Western Interior” Sea, in fact North America was broken up into three island-continents because of this.  Today much of that water has been pulled out of the oceans and is held, frozen, in the Ice Sheets.

The onset of Ice Sheets in the Antarctic is also one of the areas in paleo-climate studies that is somewhat controversial, some workers believe that once the Ice Sheets were established they remained unchanged, and Antarctica was essentially “dry”  (despite the ice cover, there was little free flowing water). Other workers believe that the Ice Sheets were much more dynamic, with periods in which they grew and shrank, and times when there was free water on the continent. Dr. Pekar has been heavily involved in this scientific debate, and his talk will likely touch on this and other climate-science issues.

Please follow the link below for a promotional flyer for Dr. Pekar’s talk:

Past Climate and Ice-Volume Changes in Antarctica: Looking Back to Our Future

New Season of CUNY GEOS Talks!

Along with the new semester of classes, Fall 2012 marks the start of a new semester of GEOS Talks! Our group has been busily working this summer to create a line-up of talks for the new semester. Our efforts have been pretty successful so far, we’ve reserved the Science Center (where the talks will be hosted) and confirmed a number of speakers. We’ve realized that it’s better to have an in-house happy hour than to go out to a bar or restaurant for socializing. It’s difficult for everyone to get to meet and greet the presenter when we’re in a bar/restaurant, and it ends up being more expensive. We haven’t been able to apply for CUNY Doctoral Students Council funding yet, because they’re going to want the full listing of speakers.

This has required a good deal of work from the students in the GEOS group, and we’ve been doing this despite some of us having our 1st Exams (here it’s a written exam and then an Oral Defense of the written portion) at the start of the semester and other’s completing their Dissertation Proposal presentations and defenses. I think a lot of us wonder sometimes why we’ve taken on this extra responsibility, but when the talks actually go through, we’ve realized that it’s well worth the effort in the past. This year should be even more exciting!

Dr. Upmanu Lall

This was our last talk of the semester. Dr. Upmanu Lall is the Director for the Columbia University  Water Center, and is also the Alan & Carol Silberstein Professor of Engineering in the Columbia Department of Earth & Environmental Engineering. His talk was quite lively and well received. He talked about issues related to Water availability, for consumption and crop irrigation, with particular reference to the developing world. Although Dr. Lall has projects spread across the globe, this talk focused on his work in India.

An especially eye opening aspect of his talk is that, for all our concern on people running out of drinking water, and the attending deaths that would come from that, there has been little focus on the real sources of water loss. In a story he related to us, most Development agencies want to do things like install hand pumps in rural villages, or even have PeaceCorps-like programs, where western College students get to travel to exotic locals to do maintenance on pumps. Clearly an ineffective way to perform maintenance, and surely the people of the developing world are competent enough to perform maintenance. Rather, Dr. Lall’s research is suggesting that there is massive inefficiencies in agricultural water use in the developing world, partly a result of technology and political corruption. This has lead to strange situations where native crops have been displaced for newer ones that don’t grow as well in a region. For example wheat has been grown in Gujarat for millenia, but the government developed a scheme whereby rice would be grown there. Rice intensively uses water resources. So some regions where wheat was grown were compelled to switch to rice, and the historic rice growing regions were compelled to switch to wheat. The result has been mass wastage of water. Infact, Dr. Lall’s research seems to show that the amount of water generally needed to keep up with human consumption is dwarfed by the amount lost through poor agricultural practice.

Dr. Lall didn’t just point fingers, his group has developed extremely cheap and highly effective devices to indicate water moisture, worked with the government to begin metering of water usage for research purposes, and worked out more reasonable distributions of farm use throughout the country.


An exciting talk that generated a bit of controversy and discussion. It was a great capstone to our Spring Semester of talks, and has really motivated us in our preparations for the Fall 2012  GEOS sessions (planning for which is already underway).

Broecker Talk

The talk from Dr. Broecker went very well, it was our most highly attended talk. I think the faculty at the grad center was as excited as the students to hear from the eminent dean of paleoclimate studies.

GEOS talk from Dr. Wally Broecker

The Geology, Earth Science and Oceanography Series (GEOS) is pleased to host a talk by Dr. Wallace Broecker (Columbia University and Lamont-Doherty Earth Observatory) on ‘Insights regarding the future of water availability in the western USA based on the paleorecord’ on April 19th, at 4:30 PM at the Graduate Center. The talk will take place in our 4th Floor “Science Center”, Room 4102.

The talk is followed by an ‘happy hour’ in the EES lounge, where attendees will get a chance to interact with Dr. Broecker.

Dr. Broecker is the Newberry Professor at the LDEO and is a world-renowned researcher who has made major contributions to our understanding of Earth’s past Climate and abrupt Climate Change. This is an exciting opportunity for the Graduate Center community to interact with a leading scientist in an increasingly important and high profile field.


Below is a link to a flyer publicizing the talk:

A talk from Dr. Wallace Broecker

High Tech and High Up

Dr. Karl Szekeilda spoke to our group tonight about some research that he’s involved in.  In fact he came to talk about two projects. One involved a piece of technology called the “Portable Hyperspectral Imager for Low-Light spectroscopy” or PHILLS. Hyperspectral Imagers are, in a way, extremely fancy digital cameras.  They collect light data over a range of spectra and wavelengths, which generates an image. This image and/or the raw data about the spectra can then be worked on by researchers to inform them about a variety of topics. If , for example, there’s a lot of plants in the image, there will be a drop in intensity of the wavelengths of light that are absorbed by Chrolophyll, the pigment in plants that allows them to photosynthesize. Different types of chrolophyll and related materials actually absorb light at characteristic wavelengths, so you can distinguish between, say, trees and cyanobacteria.  Spectral data can tell you what the distribution and even density of a set of organisms are.

The PHILLS device is able to do this while mounted on a jet screaming through the atmosphere at 10,000 feet of altitude. And even though it’s looking down at the ocean surface through a third of the planet’s atmosphere, it can still achieve three meters of resolution. That’s enough to identify objects in your backyard or see your car on the street. This technology was developed by the Naval Research Lab, but it wasn’t designed to peer at your patio. Rather it looks at the surface of the ocean and can detect potentially harmful blooms of  marine algae. It can give us some idea of what kind of algae it is based on the chlorophyll it contains, it can determine the density of the bloom, and importantly can determine the shape and track the movement of the bloom over time.

Dr. Szekeilda showed us a PHILLS  image of the ocean surface where Langmuir cells were clearly visible. Langmuir cells are rolling parcels of water driven by steady winds over the surface. If you’ve ever looked at the ocean on a windy day you may have noticed long parallel running strings of sea-foam on the surface; they’re generated by Langmuir cells. In the image Dr. Szekeilda showed us, instead of ‘normal’ seafoam, the strings were concentrations of  cyanobacteria.


So that’s PHILLS. The other project was called HICO; Hyperspectral Imaging for the Coastal Ocean. Putting an imager on a jet sounds high tech, but here an even more advanced imager was mounted onto the International Space Station (ISS).  Now the device is blasting through space at 17,200 miles per hour, at an altitude of 1,000,000 feet, looking through the entire atmosphere to detect signals from creatures that are smaller than a tenth of a centimeter. Dr. Szekeilda explained that HICO was sent to the ISS as an ‘experimental’ payload, just to demonstrate that this sort of thing could be done. The device has 100 meter resolution, which is something like an order of magnitude (10X) better than anything else up there, and cant detect light-wave difference of 6 nm (6 billionths of a meter), which Dr. Szekeilda described as ‘laboratory grade resolution’; on a device, hurtling through space.

Dr. Szekeilda showed us a HICO image of Long Island Sound, and you could clearly see all sorts of patterns and patches running across the water. Interestingly, they weren’t able to send a boat out onto the sound, or collect data from an oceanographic buoy, to verify what the imager detected. This was because, since they’re an experimental payload, they could never be sure in advance when the ISS would have electrical power available for them to use.  They’d get maybe a day’s notice when there was some free electricity for them, so they couldn’t have a boat or something like that, ready to leap into the water as the device passed by in orbit. They’d have to have boats spread across the entire world ‘just in case’ they went ‘live’ while overhead.

But they could compare their data to something. In  many testing circumstances, you’d like to calibrate your device using a ‘blank’, and then subtract the blank from your sample of interest, so that all you’re looking at is signal from whatever chemical you’re studying.  Here they did something similar, they compared the ‘interesting patches’ they found along the coast to parcels of wide open ocean. Using this they were able to see things like cyanobacteria and dinoflagellates (which are toxic and make it so you can’t eat things like shellfish during a bloom) floating in the surface coastal waters.

Dr. Szekeilda also showed us images from the Potomac river and off the coast of China, and it was really fascinating to see these high resolution patches of algae, fed by farm and lawn fertilizer runoff, forming and moving across the sea. Pretty impressive accomplishments, especially, again, considering that it’s strapped to an orbital space station.


Dr. Karl H. Szekeilda, Thursday March 1st, 4:30PM

GEOS presents

Dr. Karl H. Szekeilda

Thursday, March 1st, 2012

Science Center, 4th Floor, CUNY Graduate Center


The appearance of algal blooms is a serious environmental problem in freshwater resources and coastal regions. Dr. Szekielda’s research focused on the detection of blooms with remote sensing techniques and results will be presented with emphasis on observations from the International Space Station (ISS) over various coastal regimes.

Dr. Szekielda received an award for five consecutive years to work at the Naval Research Laboratory (NRL) Washington DC., as a Summer Senior ONR/ASEE Faculty member and worked with the NRL team on data that were collected with a hyperspectral imager for the coastal ocean. His research led to the identification of plankton and river discharge pattern in various coastal regions. In his presentation, high resolution spectra that were obtained with the imager, will show the analysis of oceanic frontal systems and plankton patchiness as well as estimates of chlorophyll concentrations in coastal waters.


As always, snacks and coffee will be provided.

Funding for GEOS is provided by the Doctoral Students’ Council.



The first talk of the semester was a great success, thanks to Christina Karamperidou and her excellent and highly detailed presentation. Ms. Karamperidou is a PhD student at Columbia University who has been working with some fairly high level models of the El Nino – Southern Oscillation (ENSO).  Her talk for GEOS focused on how different aspects of ENSO  are responsible for varying amounts of uncertainly in analysis of the system. She performed perturbation analyses of the system in part in order to do this.

Beyond the technical aspect, Ms. Karamperidou told us that she’s been working on this project in detail for around 2 years to get to the point where she is now.  This certainly shows the level of dedication needed for a great PhD project. She related the work, in a side note, to something attributed to one of the JASON project scientists; to paraphrase, one of the major stumbling blocks in our understanding of our Climate system is that our ‘observation time’ is so (relatively short). If only we had thousands of years observation. In the model that Ms. Karamperidou used, that’s exactly the case, a 2,000 year General Circulation Model run!

Here are some photos from the talk.


Christina Karamperidou on ENSO predictability & variability

Tonight we present the first GEOS talk of the semester! It’s a great one: Christina Karamperidou of Columbia University will be speaking about research she’s doing on the El Nino – Southern Oscillation (ENSO). This is an ocean-atmosphere interaction that appears in nearly every Oceanography and Meteorology textbook. The oscillation is between the ‘normal’ state, where there is upwelling in the Pacific along the coast of Peru, and an associated pool of warm surface water in the western Pacific. Winds and rain systems help sustain this configuration, wherein the upwelling brings cold, nutrient rich water to the surface. These nutrients feed a bonanza of ocean life, including economically important fishstocks. The El Nino state involves the shutdown of upwelling and a change in the configuration of the winds and atmospheric pressure systems. The fish-stocks collapse because of the loss of nutrients. 

This system is important because it has effects all across the globe. In some places it can encourage droughts, in others, devastating rains. Variation in the system is also associated with the number, strength, and even the tracks of the Atlantic Hurricanes, which sometimes hit us here in NY!

There’s also a third phase to the oscillation, called La Nina. This is basically an intensified version of the normal system, with really strong upwelling and a wider swath of cold surface waters. The ENSO has been in a La Nina phase for a while now, and that is what is responsible for this mild, nearly snow-less winter we’ve been having in NY.

So events in another ocean, in another hemisphere, have teleconnections that reach right across the world and hit us!

Christina Karamperidou will specifically be talking about how we predict what the next ENSO phase will be (it doesn’t just cycle through them in sequence) and how variability within the system contributes to our uncertainties in those predictions.

We’re all looking forward to it, this will be a great talk to kick off the new semester with!

DSC Funding

Last semester, we submitted a request for funding to the Doctoral Student’s Council (DSC) (this was to fund the talks for the Spring semester).  This was our first time submiting to the Grants Committee and I think we were a little too ambitious and ambiguous.  I attended the committee meeting and explained the GEOS program to the members and tried to justify our budget, but in the end they decided not to approve it. Fortunately, they also didn’t reject it; they gave me some feedback and requested that we ‘revise and resubmit’.  So I did that, and Friday night was when our grant came up before the committee again.

I attended the meeting again also. Last time there were a handful of groups applying for support, this time there was more than a dozen. When it was GEOS’s turn, I explained the changes, and they were concerned that we were requesting too much still for printing.  Luckily, rather than reject the entire application, they struck the printing as a line item and approved the rest of the grant.

So this is great, we have a stable set of funding already approved for our talks. We don’t have to worry about funding now and can focus on the important stuff, like, you know, the talks themselves. 

Between having certified funding and a nearly full roster of speakers (we only have one slot to fill), this should be a successful year. In fact we’re already starting to make plans for next year.

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Organizational meeting

We held an organizational meeting this Thursday, the first of the Spring semester. The semester at the Graduate Center actually start pretty late, most classes only started this week.  About eight of us were able to make it (eight is enough!).  We have a nearly full roster of speakers for this semester, in fact we have only one opening to fill.

A few things came up at the meeting, like sorting out the different funding streams (departmental, grad-center wide, and Doctoral Students Council (DSC) funding) and who’s responsible for them. Mapping out the topology of the byzantine network of organizations at a University as large and distributed as CUNY is no small effort in itself.

One thing we considered was setting up GEOS as a a Chartered Organization with the DSC.  One of our members is also invovled in a Chartered Org and they explained the process to us.  There’s actually a fairly high set of requirements to be recognized as a chartered organization, and it would require involving a few other departments. GEOS would be pretty different if it was administered by, say,  our program, Biology, and Chemistry, than if it was just by us. So most of us seem pretty leery about being a Chartered organization right now.

We’ve also been able to build up a list of email addresses of organizations that might plausibly and reasonably have recipients who’d like to attend the GEOS talks.  We have departmental faculty lists for the Grad Center and some of the other CUNY campuses, but we also have the emails of CUNY environmental/geology clubs and similar clubs at non-CUNY schools, especially ones that are physically close to the Graduate Center.  We plan on building this list and using it to promote the talks.  It’s always possible that someone at a science club a few blocks from the Grad Center might decide to pop over to catch a talk.  We’ll continue to build and refine that list.  These sorts of things probably aren’t all that great; people tend to ignore unfamiliar ‘broadcast’-type emails, but on the other hand they take no effort to use.  They’ll generate a ton of misses, but maybe a hit or two, which would make it worth it.

We’re trying to run the talks in a very simple manner; two members are responsible for each talk, which means they’ll get the food and drinks, put up flyers, blast emails, introduce the speaker, and clean-up. It’s actually a fairly small set of things to do, and we’re all pretty independent people so this is probably the best way to do things.

Since we’re grad students, we’re all pretty busy, we have classes that we’re deeply involved in, we have teaching/work assignments, and we also have our research, which most of us are just starting out; it can be pretty intensive.  So doing work for our GEOS lectures isn’t easy, even just having a meeting can be difficult to justify and schedule.  When it comes to funding, consider that the people we are requesting funding from are also grad-students, with similar workloads to ours. You have to really want to be involved to do this sort of stuff in addition to your classes.

But we all feel that it’s worth it.  This was another issue that came up at the meeting; generating involvement and helping to foster a sense of community within our program.  That might sound like a cliché or cheesey, but there’s more than an emotional rationale for it.   Grad School isn’t easy (and shouldn’t be). Having good connections with other students in the program can make a big difference in terms of your success and experience.

The meeting ended with, I think, most of us having a clear idea of some relatively small but important tasks to do and a time-line of when to do them by.

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Multi-media and GEOS?

I’ve been thinking that we really should have some way of keeping a good record of our GEOS talks. It’d also be great if there was a way to share the talks with other students. We have our campus’s Science Center (on the 4th floor) reserved on every-other Thursday, which tends to be a day when there aren’t too many classes, or at least it’s not the day that the departmental Core Required classes meet, but even so a lot of students just can’t make it to the talks.

Between taking classes at the Grad Center or the other CUNY campuses, and teaching at their own campus, students in our program are pretty busy.

Maybe it’s time to start video-recording these talks and post them on YouTube or Vimeo. The Graduate Center apparently has Audio-Visual equipment that can be loaned out to students for the day, so obtaining it probably won’t be a problem. Heck the school might even want to host the video’s itself.

One problem I can see is that researchers might be uncomfortable having their talks recorded and then, effectively, broadcast. It’s not too uncommon for scientists to do this themselves, but we’ll definitely have to give them plenty of heads up before doing that.

Missed one

I had contacted a researcher who’s quite the giant in their discipline, hoping they’d give us a talk. Unfortunately they’re completely booked up this Spring, especially because they have a book coming out. Despite that they responded to my email really soon after I sent it.

Luckily this researcher suggested that they’d be available next fall, which would be great! Now we’ve at least got someone lined up for next semester too.

More speakers

We’ve been able to add Two more speakers to our list. We’re all pretty excited to hear these people talk. Now we have 4 more slots to fill. Then we’ll announce the official line-up. Despite being top researchers and very busy people in their fields, these people have been pretty quick to respond. I’m happily surprised that we’ve been able to get them, I can tell it’s going to be a great series this semester.

Building up that Speaker list

We have 7 slots for the Spring semester. We’re hoping to have talks every alternate Thursday. Because our Department includes a Geography subdiscipline, we’re alternating weeks in the Science Center conference room with those students (they’ve been busily and successfully organizing their own talks).

Our slot for March 15 has been filled, so we’re going to have to get busy filling the rest.

No funding, but there’s still hope!

The DSC didn’t grant our funding request, but they also requested that we re-submit our application after making some amendments. The whole procedure was very formal, even though they’re students they have a specific process and they stick to it, no slacking here!

Among other things, they were concerned that we didn’t have a line-up of speakers and that some of our budget items weren’t specific enough.  If we can work that out, they said we could re-submit for the February meeting, so that’s what we’ll have to do!

Crossing our Fingers on Funding

A short while ago we submitted a grant application for funding of our GEOS talks. Our campus has a student organization called the Doctoral Students Council, and they have the ability to distribute funding to student organizations. This is actually pretty significant, because student groups can’t allays lean on their departments for activity funding.  Having an alternative source of funding is important. The amount we’re requesting isn’t all that much, given how great a series of talks we are planning, so hopefully it will go through and get approval. 

The DSC is meeting today in fact, so some of our members are going to be at the meeting. I don’t know when during the two hour meeting the DSC will be discussing our application, hopefully we’re not last on their agenda! By attending, we’re hoping that any questions they have can be answered immediately so we don’t have to delay funding.

Marco Tedesco to speak at GEOS!

This lecture series is taking place at the CUNY Graduate Center, in the Science Center on the 4th Floor.
GEOS is the Geology, Earth Science and Oceanography Series of Lectures, a student lead and run organization.

Next Thursday starting at 4 pm (Nov. 17th 2011) Marco Tedesco will talk about his latest Greenland Expedition. Ice Sheet dynamics are an area of great scientific interest, with profound impacts on Global Climate Change. Dr. Tedesco has recently returned from his latest of 3 scientific expeditions to Greenland where he studied ice sheet processes.

This lecture is free and open to the public, light refreshments will be served. Attendees will be able to interact with Dr. Tedesco following his presentation.

Please see the included flyer for more information: 


The Graduate Center, CUNY

Earth and Environmental Sciences Program
365 Fifth Avenue
New York, NY 10016 USA


GEOS is the Geology, Earth Science, and Oceanography Series of lectures and seminars. This is a student created, lead, and run organization. We are students in the Earth & Environmental Sciences Program at the CUNY Graduate Center.

The Earth Sciences are one of the oldest sciences, but it still remains one of the most dynamic.  Every day there are new, exciting advances in fields like Geophysics, Ocean-Atmosphere interactions, and Climate Science.

It can be difficult, even for professionals, to stay up to date on the latest research. That is why some of the students in the EES Program at the Grad Center decided to form an organization to invite and manage guest speakers on a variety of topics.  This allows us, and other members of the community at large, to hear about the cutting-edge in Earth Systems Science from leaders in the field, and then interact with them.

The GEOS lectures are intended to be open to the public. We hope that non-science students, as well as our fellow Geology students, both from our Campus and others, will be able to attend and find the talks informative and stimulating.

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 Supported by the CUNY Doctoral Students Council.