November 19th

I learned about the environmental health hazards which are: Physical, Chemical, Biological and Cultural, with their effect associated. I also learned from chapter 10, the mining methods and their different impacts and the sustainable use of mineral. Interesting!

Test / presentation

Does anyone have their syllabus handy? Can you tell me when the final test and presentations are scheduled?

Thanks!

On the 5th of November, I learned that our waste water goes through various cycles to purify. Although, when it is released into natural bodies of water; there is an increase of fresh water within the sea water. The salt water goes through a desalination process.
In class, I found learning about underwater creatures to be the most interesting. I was very fascinated with the deep water creatures. I did not realize that the light hanging off their head was to lure their dinner. I also never realized that they were holes within the ocean floor that contain heat/air.

On the 12th of November, I learned about the population of people. I was interested in the demographic transition model with the four stages. I learned that the majority of people in the world are in the second and third stage of the model. I know that there are no countries within the world that belong to the first stage of the transition model. In class, I also found learning about the population pyramids quite interesting.

Hans Rosling on global population growth

This video was very interesting. It held my attention the whole way through. The information was very well presented. I am not really surprised that the gaps are that big. By using the colored boxes; it makes it more helpful for the average person in the western world to understand that not everyone uses cars and planes for transportation. Many countries still ride on donkeys and have carts to transport their materials from one place to another. I believe that people within the world should strive to make it better. Everyone should be able to buy their own shoes and have their own food to eat.

On the 19th of November, I learned that people today use the Precautionary Principle Approach. This is where the government does not say anything until a product is proven dangerous. I think this is extremely irresponsible. I understand that scientists may need time to understand the productive fully, but the public should not have to worry about if something is dangerous or not. In class, I also learned that quarries contain toxic water. Maybe I should not dive in them anymore…

Endocrine Disruption Expert

This woman sounds very knowledgeable. She and her friend seem to have done a lot of site checking. I think citation checking is not done enough in the world today. People are fine with limited information and are not too bothered about its source. That or they don’t know that not all magazines are reliable. It makes me really nervous that people still create pesticides and toxic chemicals for various reasons when they know deep down that they are not healthy. Something needs to be done before we completely destroy the earth and us along with it.

Endocrine Disrupters Video

Oh my God! the humanity is really in danger, but to just sum up, how long is it going to take for incomplete tested pesticides and others gazes not to be put on the market? Scary!!!Now i want to read Dr. Theo Coburn book 'A Stolen Future'.

November 12

Everyone should understand how water and wastewater systems
work. That understanding may help support conservation measures. I have never been a fan of longline fishing
and support laws that minimize its use.
I think they should only allow the fishing industry to use techniques
that minimizes the impact to the environment and other species.

Endocrine video

Im just overwhelmed with information. Hell I think I should just stay inside. So many different issues to address. The thing is we can not have our cake and eat it to. There is always going to be waste of some sort left and we will feel the affects of it.

November 12th class

I realy enjoy realestate and I think all this information will be useful to me. I never understood about the different water systemts like well, secptic , and public. I also found myself looking at homes and thinking I wouldnt want to buy there because of the way water flows. I have some talapia in my freezer. I am not sure if we are going to eat!

Novenber 19th

Missed class... I had to work

Global Population

 I thought his presentation was very good. I think the gap should be closed not just for the children but for the good of all. Poverty and underdeveloped nations breed all types of people and groups! Its seems that we are just getting fat now. We have accomplished much. I hope this isnt the part where we start to talk about how every great empire falls!

Water Videos

I think technology is cool. I dont think our city takes that good care of our water. I mean they are bankrupt now. I think it is amazing how we are able to turn our waste water into drinking water. I wonder just how pure it is? It didnt say if we should still boil our water or not. I also think what California is doing is great. Im a big fan of that type of recyling.

Four Videos Chaptr7

I think the techniques that we have come up with to protect against soil corrosion are great. I realy liked the demonstration in video two . I found it very interesting and the next time I hear someone talking about this subject I will at least know what they are talking about. In the third video I would find it annoying to look for bugs and thats probably why I never had a garden but the information was very valuable. As for the last video I dont know how I feel about GE foods. I do feel that we would have more land to farm if people would not feel the need to develop everything. On one end we say we cant produce enough food for all the people but then we develop everything. It appears no land is safe. I try to buy organic whenever I can afford it.

Endocrine Disruptors Video

scary studies, but it good to know it. It was really interesting to hear about Dr. Coburn's studies that benzene and chlorine are instrumental in causing defects in animals and humans. it will be good if we could see all the pictures and hear the whole video one part couldn't hear it clearly.

november 5th class

i learned about erosion and the principles of soil conservation.i also learned about genectic modification which is still a controversial issue. it was interesting class to see how erosion can destroy soil and how to preserve it.

Endocrine Disruptors Video

Complex and scary stuff ... sounds like we need more scientific study on chemicals in the environment and a re-evaluation of the "old" chemicals since they have had time to make their impact known. It was really interesting to hear about Dr. Coburn's studies that benzene and chlorine are instrumental in causing defects in animals and humans. Keep in mind EPA/DEP requires all water systems to add chlorine (regardless if there are confirmed contaminates) to all public drinking water systems. Would of been interesting to see her charts on the critical windows of development, the screen was too small. Interesting closing about the benzene being emitted from the natural gas developments - something we should be concerned about with Marcellus Shale so close.

Global Population

Very intriguing presentation with an interesting illustration that caught my attention. Never thought of the "new green" as to being population reduction but if you think about it, it makes sense. Reduce population and you reduce the need for all resources. I get some of his theory on reduce child survival and thus reduce population growth, but we are a long way off from those successes in the developing countries since you will need the eduation happening from all levels - I am just not confident that it can happen in the next 50 years with all the unrest that they have in those countries right now.

Endocrine Disrupters

This week's video is a lecture from Dr. Theo Coburn, one of the original scientists to explore the theory of endocrine disruptors.

Population

That video really put it in perspective for me.To be able to see where the world is headed and finally able to see the number.It was very clever how he did his presentation.it caught my attention.

Bio103: Water Videos

Bio103: Water Videos: This week, we have three videos. The first is a tour of wastewater treatment plant in OK. The second is an information video about land appl...
I never really thought of where our water comes and goes to ,but thankfully there are people who do.The science behind water treatment is amazing.The desalinization process will be a major factor in all of our futures

November 12

i learned about water distrubution on earth, the water supply and its quality,and also what i found interesting and at the same time very unpleasant was how wastewater is treated. i can tell by taking a biology course you will be able to learn more about your Enviroment and how things are going on.

November 5 class

i learned about erosion and the principles of soil conservation.i also learned about genectic modification which is still a controversial issue.

Water Videos

OMG, the question is it safe to drink the wastewater from the video # 1? As they said it is good for the environment, but how about us?i believe disalination is good, in a way we get clean water and also salt that can be use for lot of thing.

The global population

I really love his presentation! Oh yeah I agree with him when he said the new world goes from walking, biking ,driving and then flying. Population growth is being helped by Unicef (United Nations Children's Fund)in specially many Africans countries which may be more helpful in some up coming years.

4 videos for october

4 video comments

In the first video, it seems that the decrease of plowing and the use herbicides has helped lower erosion. My first thought, was that the use of herbicides was more harmful to the environment then the use of plows. However, after listening to this video, it seems that the use of the tractors and plows are more helpful to the environment . According to Graham Brookes, in 2004 there was ten billion kilograms less co2 within the atmosphere. He said it is the equivalent of taking twenty percent of the cars in the United Kingdom off the road for a year. That is a very large portion of co2 that has not been released into the air.

In the second video, I did liked how there was a demonstration used to describe how rain water filters through grass, corn residue and soil. It makes sense to me to stop soil erosion by the use of grass and the left over crop residue on the surface of the soil because it helps produces better filtered water.

In the third video, when the man states what gardeners should look for in their plants; it seems quite self explanatory. Although, his steps seemed be very useful.

In the fourth video, I would need to research more about the situation to really decide what I think is best. I believe that it is fine that researchers are trying to find ways to make more crops for people in developing countries. I personally think, in the years to come we will find out that the genetically engineered crops are more harmful then useful.

Natahsa Lebby
3 Video Blogs from the 5th

Video one was quite interesting because it went through the process of cleaning waste treatment water. When I was watching the men describe each process of cleaning the water; it seems that the water cleaned up well. My only thought though was; does the clean water really help the creek? Or, is it so clean that the water kills off anything that was living there before?
I know that California itself is very conscious of making sure that there are plenty of organic foods for the consumers to buy. California also has bins for composts, recycles, and wastes. This act is not widely spread across the United States. So, I am not surprised that SFO has all their waste water treated. I never heard of water waste treatment making bio-solids. I think it is a good use our brains for a change. We don’t seem to be hurting the environment and we are putting our waste and rubbish into good use.
I am surprised to hear the water is treated within a day and ready for safe drinking.

November 5th Class

In this class period, I took away from the lecture the grueling information about our clean water slowly but surely becoming nonexistent and that only 2.5% of water on Earth is actually fresh. I did like going over the key terms because it helps me better understand what all of these concerns for fresh water in lakes, marshlands, oceans, and rivers means.

Video-Global Population

Wow! That is a huge gap between the West and the developing world! While one society aspires to build a plane, another one dreams to have a bicycle!

Global Population

This week's video talks about the global population and uses a clever way to illustrate the varying levels of economic development. 

November 5 Class

Wow did not realize that we depleted so much of our water resources and that water is so slow to recharge itself. We need to do better at educating all generations about the need to conserve and reserve our water resources since they are core to our survival. We do try to conserve as much as we can but I am sure we could do better.

Water Videos

This week, we have three videos. The first is a tour of wastewater treatment plant in OK. The second is an information video about land application of biosolids from San Francisco. And the third is about a desalination plant. 

The 4 videos

Alot of infromation in those videos,the great thing about them is they make you think.The soil erosion problem seems simple to solve,but hard to resolve.Getting all of the agriculture community to follow a program would be the solution and the farmers above all others want to resolve this problem.
The GMO foods has some interesting points to ponder.Either feed the world or let opinion starve nations.While there is no concrete studies showing the harsh effects of GMO food it raises many concerns.In my humble opinion I think someone starving in a devolping nation might not care if their food was crossbred with another food as long as they had food.