Sunday, January 23, 2011

Topic: What happens if the Polar ice caps melt?

I had believed global warming was absolute fact until one day when a classmate in a course I was taking for my Bachelor’s degree (Earth Science) asked our professor if global warming was fact. She adamantly said it was not, and several hands shot up- students that wanted to disagree with her. She replied to a couple of questions then stopped, claiming that she was there to teach the class, not to debate an issue that was not on her agenda. 

Since then I have been a bit skeptical concerning the issue of global warming. I wanted to find documented evidence on both sides of the issue but I know that simply because data is published, it may be skewed in favor of the author’s viewpoint. 

I started out with reading articles from the National Geographic. I like how they are ecologically aware, yet conservative. I believe this is a responsible magazine, hence my choice. 

Some facts from the National Geographic (2011): In 1895, the Swedish chemist Svante Arrhenius discovered that humans could enhance the greenhouse effect by making carbon dioxide, a greenhouse gas. Humans have increased the amount of carbon dioxide in the atmosphere by more than a third since the industrial revolution. Changes this large have historically taken thousands of years, but are now happening over the course of decades. 

This seems to be causing a domino effect. Once the world temperature rises, change happens everywhere- and it is happening far too rapidly to be of natural causes. “According to the Intergovernmental Panel on Climate Change (IPCC), eleven of the twelve hottest years since thermometer readings became available occurred between 1995 and 2006.”

After reading from the website for the IPCC, I used this link to find arguments for and against Global Warming: http://www.pbs.org/now/science/climatedebate.html. 

The E.P.A., the I.P.C.C., scientists, environmentalists and meteorologists worldwide all agree.
From my reading I have seen some excellent arguments concerning what is happening to the atmosphere of the world and how our use of CO2 has affected it. I am now leaning on the side of the ‘believers’. The skeptics have good reasons why Global Warming may not be happening, but from what I have read they have not analyzed the data in nearly as much depth as those that are convinced.

Now to address the original question: What happens if the polar ice caps melt? Everything will be affected. The temperature increase IS happening, it may be only 1% increase in the long run or it may be up to 5% increase. Either way, all life is affected. Here is a graphic from the I.P.C.C. report: 



http://www.ipcc.ch/graphics/syr/figi-1.jpg
As you can see, if the climate changes, sea levels rise. If sea levels rise, ecosystems and water resources are affected. If ecosystems and water resources are affected,  our socio-economic development will be affected. If our socio-economic development is affected, we come back to the issue of climate process drivers and the concentrations and emissions of greenhouse gases. Which is us. Which really is All of us are responsible for. 

It is a chain of responsibility that starts with all of us. To impact the future, we as teachers must pass on the importance of being ecologically responsible and aware to our students. If we do not, we are contributing to future damage on a global scale with enormous negative impact. 

What will you do?
What can we do together?
Is it possible to make any kind of impact on this as individuals? Or does it all depend on the auto manufacturers, the factories and industry? 

International Panel on Climate Change Climate Change (2007): Working Group I: The Physical Science Basis.9.1.3. The Basis from which We Begin. http://www.ipcc.ch/publications_and_data/ar4/wg1/en/ch9s9-1-3.html.

National Geographic Society (2011).What is Global Warming? Retrieved from http://environment.nationalgeographic.com/environment/global-warming/gw-overview


Sunday, January 16, 2011

STEM lesson plan writing and me

As stated in my previous blog, I have had some difficulties with this lesson plan. Initially I thought it would be easy but it was tricky trying to pull together a historical benchmark from the 2061 collection, the idea of meshing the STEM topics into a lesson and finding something appropriate for diverse learners.

The five E's are an excellent tool and when I teach I naturally incorporate many of these ingredients in my presentation and in interactions with my students. Making a lesson personal, connecting science with real life experiences, giving the students questions that lead to critical thinking and dynamic group discussions, and creating assessments that show me my students have learned in a variety of formats- I use all of these when teaching, although they may not be written into my lessons per se.

I believe that writing these into my lesson plans would help me consider what I do and how I do it before going into the classroom, rather than winging it from time to time (although we all do!)

When I was writing my lesson plan, I wondered if it was practical to have my students do as much math as the lesson requires. It's simple mathematics and all scientists must use math to prove their work- perhaps this is good real life practice. Not all of my students are good with math, so I will include calculators (they love calculators).

Difficulties, argh!

Difficulties...argh!
STEM lesson plan writing and the miasma of difficulties that have followed me like a dark cloud... This has been quite an experience. I have changed my topic several times, initially I had a fabulous lesson plan but I could not fit it in with the 2061 initiative, then I had one that suited that beautifully but did not follow STEM and finally I had a lesson plan that would work with all of the above. 

Then I got to work. 

Things seemed to flow, my lesson concerned having my students look into the expense behind the electricity of appliances in the home. Math, science, cooperative learning, group discussions, personal applications, beautiful.  I sat down to fill in the template.

It didn't work with MS works.
It didn't work with Open Office.
It didn't work with word pad.

When I finally got it to work with some adjustment via MS works, my computer froze when I pulled up page 8. I lost quite a bit of data.

So I tried it again.
Computer froze again.
Lost data again.
It has been three days now and I have three-fourths of my lesson plan completed. I am disheartened. But I will persist. I have decided to purchase a code for Microsoft Word so I can do my homework on the days that it is due and not after that. So. I will write my proper blog entry next, as I can at least do this much at this time. Has anyone else run into this problem with templates?

Sunday, January 2, 2011

First Blog

Here you go, this is the first blog posting in my adventures of becoming a teacher of Science. Science Rules! Hence my blog link.
Kathie