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1.74  Land, Water, Food, and Climate

Spring 2016

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Instructor: Dennis McLaughlin

Lecture:  M1-4  (48-216)        

Information: 

This reading seminar will examine food security in a changing world, with an emphasis on key scientific questions about the connections between natural resources, climate, and agriculture. Participants will read and discuss relevant refereed papers on a range of topics, including water, land, and nutrient resources, environmental impacts of agriculture, demography, agrotechnology, trade, and climate. The goal is to provide a broad and balanced perspective on one of the defining global issues of this century. Discussions will consider scientific controversies as well as areas of general agreement and will examine practical solutions for addressing critical problems. Participants will be expected to present reviews of selected papers and lead followup discussions. The seminar is open to undergraduates as well as graduate students. The discussion will be organized around the following topics:
Framing the discussion -- The Malthusian debate
Food and natural resources -- Recent trends, demand for food, demands on resources, now and in the future
Environmental implications of expanded food production
Sustainable approaches for achieving food security
A draft syllabus and an annotated reading list are provided on the 1.74 Stellar site at https://stellar.mit.edu/S/course/1/sp16/1.74/index.html.

Announcements

1.74 Discussion, Monday 2 May

This class continues our discussion of agroecology, with an emphasis on smallholder agriculture and on different views re. the merits of conventional vs organic agriculture.  I am looking for volunteers for all of these papers.

Altieri, 2012 : Scalability of agroecology
Trevawas, 2001 :  Crtiicism of organic agricuture
Seufert Et al., 2012  Meta-analysis of organic vs conventional yields
Tscharntke Et al, 2012 : Agroecology for smallholders

Announced on 28 April 2016  1:16  p.m. by Dennis McLaughlin

1.74 Discussion, Monday 25 April

1.74 Discussion, Monday 11 April   

This class considers precision agriculture, conservation agriculture/tillage, and agroecology as new approaches for sustainable food production. I am looking for volunteers for all of these papers (some tentative options are noted).

Gebbers & Adamchuk, 2010 : Quick review of precision agriculture  (Hunter?)
New Yorker, 2013: Popular article on sensing, modeling, and risk management in agriculture (Scott?)
Hobbs, 2007 : Conservation agriculture/tillage
Hainzelin, 2014 : Introduction to agroecology

Announced on 23 April 2016  10:49  a.m. by Dennis McLaughlin

1.74 Discussion, Monday 11 April

This class turns to New Approaches and Technologies for sustainable food production. The first 4 papers/articles deal with GMOs and the last is a brief introduction to precision agriculture.
I need volunteers for all of these papers. One person should do the two GMO articles by Gilbert and Cressy, which are both short and to the point. The Ronald paper is longer and more in depth. Wolfenbarger and Phifer and Gbbers and Adamchuk are both relatively short and should probably been done by two different people. Please email me soon since this announcement is getting out later bthan ususal.

And ... please read these papers, whether or not you are presenting them, since this always helps the discussion be more beneficial for everyone. It is usually pretty apparent who has or has not read the papers.

Wolfenbarger & Phifer, 2007 : Risks and benefits of genetically modifed crops
Gilbert, 2013 : GM Crop issues
Cressy, 2013 : New development in GM crops
Ronald, 2011 : Supportive GM review
Gebbers & Adamchuk, 2010 : Quick review of precision agriculture

Announced on 09 April 2016  10:32  a.m. by Dennis McLaughlin

1.74 Discussion, Monday 4 April

This class continues our discussion of climate. Katalin will conclude her discussion of the IPCC report Chap. 7 on agriculture and climate, with an emphasis on adaptation measures. If you have not read this Chapter yet please review it to facilitate discussion:


We will also discuss the IPCC Summary for policy makers, which gives an overview of relevant observations and model results:


An important aspect of climate mitigation is expansion of biofuels, which can compete with food for natural resources. We will discuss two biofuel readings, one short and one longer. I suggest that you read Tilman first and use the WRI report to examine
in more detail the points raised in Tilman. Also, the WRI report has much more data and some useful graphics that add to the general observations provided in Tilman:

Searchinger&Heimlich, 2015: WRI report on biofuels and food

Taken together, these four readings give a good overview of issues related to climate and agriculture.
I need one volunteer for the IPCC Summary and another for the two biofuel readings. Please email me if you can do this.

Announced on 30 March 2016  10:00  a.m. by Dennis McLaughlin

1.74 Discussion, Monday 28 March

This class concludes our discussion of water and nutrient impacts of agriculture and turns to climate issues.
The readings are all listed on the Stellar site under "Materials, Class 7":


Hertig&Gleeson, 2012 : Groundwater depletion
Herzog, 2005 : Survey of greenhouse gas emissions
Cole Et al., 1997 : Greenhouse gas emissions from agriculture
IPCC AR5 WG2 2014 Chap 7:  Official climate change summary

Please volunteer by sending me an email, especially if you have only done one paper.

Announced on 24 March 2016  11:04  a.m. by Dennis McLaughlin

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