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The draft report discusses the significant impact of greenhouse gas emissions on global warming, highlighting that agriculture is a major contributor, responsible for 22% of emissions. It outlines the consequences of global warming, including extreme weather events and rising sea levels, which threaten agricultural productivity and food security. The report emphasizes the urgent need for resilient crop varieties and the protection of natural resources to address these challenges and meet the food demands of a growing population by 2050.

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4 views3 pages

Printout 3

The draft report discusses the significant impact of greenhouse gas emissions on global warming, highlighting that agriculture is a major contributor, responsible for 22% of emissions. It outlines the consequences of global warming, including extreme weather events and rising sea levels, which threaten agricultural productivity and food security. The report emphasizes the urgent need for resilient crop varieties and the protection of natural resources to address these challenges and meet the food demands of a growing population by 2050.

Uploaded by

yididyatarekegne
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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3/30/2025

Agriculture and Climate Change


• Draft Report

Yididya Tarekegne ET008 1019

Greenhouse Gas Emissions


• global warming is a consequence of greenhouse gas emissions
• heat from the sun is trapped as gases build up in the
atmosphere
• emissions have increased by 40% since 1990
• over 50 billion tonnes of greenhouse gas are emitted each year
• emissions come from a range of industry sectors and processes
• agriculture is a major contributor of greenhouse gases

Yididya Tarekegne ET008 1019

1
3/30/2025

Industry sources
Global emissions by economic sector
Industrial Processes
• the primary source of greenhouse
Transportation
14%
7%
gas emissions is electricity and
Agriculture,
Forestry and other
heat production - responsible for
37% worldwide
Land Use
Manufacturing/Con 22%
struction
9%

• agriculture is the second largest


Buildings
7%
Waste
cause - responsible for 22% of
4%
global emissions
Electricity/Heat
• 10 countries produce more than
Production
37% 68% of emissions

Yididya Tarekegne ET008 1019

Consequences of global warming


• increased frequency of extreme weather events including:
– torrential rains
– floods
– heatwaves
– droughts
– storms
• average temperatures predicted to rise by 1.5ºC by 2050
• global sea levels rise as glaciers retreat and ice sheets melt
• more land at risk of coastal flooding

Yididya Tarekegne ET008 1019

2
3/30/2025

Effects on agriculture
• higher CO2 levels affect crop yields and nutritional value
• extreme temperatures can prevent crops from growing
• torrential rains, floods and droughts can harm crops and reduce
yields
• rising sea levels may result in loss of agricultural land
• increased migration of invasive pests that damage crops
• global crop yields could decline by up to 30% by 2050

Yididya Tarekegne ET008 1019

Challenges ahead
• greenhouse gases now far exceed safe levels
• extreme weather events will impact crop production
• natural resources need to be protected
• more resilient crop varieties are needed
• protecting carbon sinks is essential for keeping the climate
stable
• food insecurity set to become a global issue
• the world will need to produce 70% more food by 2050 to feed
an estimated 9 billion people
Yididya Tarekegne ET008 1019

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