Class Notes (807,639)
Canada (492,765)
Anthropology (1,868)
Lecture 4

Week 4.docx

3 Pages
Unlock Document

McMaster University
Mosey Nicholas J

Anthropology- weekth Monday January 27 , 2014 Thomas Robert Malthus -population increasing faster than food production -Why did his prediction become true? Because food production didn’t become static, we found ways to increase it Package of inputs -Irrigation- using a lot more water -without all of these inputs, the new varieties would actually do worse than the old varieties Pros: -world grain supplies increased more than double -small increase in the area planted, big increase in the whole population Cons: -Technology wasn’t spread equally-some people benefited way more than others -farmers couldn’t afford to buy seeds, fertilizers and equipment -pesticide exposure, especially to farmers -Africa didn’t get the benefits that other countries did Environmental Costs -Environmental degradation- if you’re using nitrogen, it goes into groundwater -loss of species variety and variety of plants -loss of agricultural knowledge, ex crop rotation: you can rotate the crops a certain way to manipulate the nutrients in the soil Agribusiness -agriculture as a business -a minority of farms are producing the vast majority of foods that we eat Pros: -enables more people to get away from food production -allows for other jobs other than farming -food is regulated by the government by quality checks Cons: -pressure on farmers because of the world markets -the increasing drive to produce more products means that the latest technologies, ie antibiotics, need to be used to create a bigger and better product Bovine Growth Hormone (BGH) -Increases the milk production in the cattle by 10-15% -the use of it has declined significantly Risk to cows -increased infertility -increased udder infections, which led to more antibiotics used Risk to Humans: -linked to cancer -risk to allergic reactions Summary: th -the worlds food supply increased in the 19 century -further increase in production w green revolution-saved many people from starvation -but was unsustainable Biotechnology Mad Cow Disease -the disease in cows (BSE) -the human equivalent of mad cow disease is Creutzfeldt-Jakob disease (CLD) - How did this happen? Slaughtered animal meat is processed for human consumption. The rest, called offal (entrails, hooves, brain) was then eaten again by the animal. The cattle contracted this disease, and when humans ate the contaminated beef, they got sick -it is characterized as fatal nervous system disorder -it’s caused by prions in the brain. A prion is the proteinaceous infectious particle -mad cow disease can last up to 30 years
More Less

Related notes for ANTHROP 2AN3

Log In


Don't have an account?

Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.