ES 2EI3 - Lecture 10 - Agriculture - 3

Agriculture and global warming over 30 years yields

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: ices 2. Agriculture and Global Warming • Over 30 years, yields likely to decline by: Rice: no fertility at 40C 10 10% for every 1C increase 40% reduction in yield e.g. Sugar cane deforestation Oil: 95% of transport Crops being used as a fuel rather than an energy source (i,e., food) 3. The Green Revolution • Global production of wheat and rice dramatically increased Selective breeding Intensive irrigation Fertilizer use The Green Revolution (2) • • 1st Green Revolution: developed countries 2nd Green Revolution: New strains and farming practices developing countries NERICA rice Lots of protein 50% more yield, requires lest fertilizer Depletion of Nutrients: a Problem • Use of fertilizers has reached its limits More fertilizers = More yields Genetically Modified Organisms • ‘Miracle seeds’ = new strains...
View Full Document

This document was uploaded on 02/09/2014.

Ask a homework question - tutors are online