This document outlines a geography presentation on Earth's atmosphere that will discuss the greenhouse effect, El Niño impacts, differences between subsistence and commercial farming, causes of climate change, and its effects on farming. It recommends organic agriculture, agri-forestry, no-till methods, efficient irrigation, and permaculture as sustainable practices, noting concerns with GM crops' nutrition and drought resistance. Sources and references are included.

1. Presenter: L. SEFOKA
215047064
Subject: Geography grade 10
Topic: Earth’ atmosphere

3. Understanding food security
El Nino concept and its impacts
Distinguishing between subsistence farming and commercial farming
Causes of climate change
Impact on farming

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8. Source A: https://www.google.co.za/search?q=greenhouse+effect+diagram

11. Source B: https://www.google.co.za/search?q=dry+farms

16. The best practice for both food production and addressing climate change is organic
agriculture and best form of that regarding climate change is Agri-forestry.
Much progress has been made in methods like no-till agriculture and more efficient
irrigation.
 Permaculture can be an important source of food production in urban and country
settings.
GM crops have been promoted as a solution, and more drought resistant species
have been developed, but there is no such thing as a drought resistant crop and the
GM products are less nutritious.

17. International Impacts

19. REFERENCES