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Mock Exam Presentation

The draft report discusses the significant impact of greenhouse gas emissions on global warming, highlighting that agriculture contributes 22% of global emissions. It outlines the consequences of climate change, including extreme weather events and their detrimental effects on crop yields and food security. The report emphasizes the urgent need for resilient agricultural practices and the protection of natural resources to meet the food demands of a growing population by 2050.

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aminaberete018
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12 views3 pages

Mock Exam Presentation

The draft report discusses the significant impact of greenhouse gas emissions on global warming, highlighting that agriculture contributes 22% of global emissions. It outlines the consequences of climate change, including extreme weather events and their detrimental effects on crop yields and food security. The report emphasizes the urgent need for resilient agricultural practices and the protection of natural resources to meet the food demands of a growing population by 2050.

Uploaded by

aminaberete018
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as PDF, TXT or read online on Scribd
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5/27/2025

Agriculture and Climate Change

• Draft Report

Amina Destiny S Berete Zw333 V301

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

Amina Destiny S Berete Zw333 V301

1
5/27/2025

Industry sources
Global emissions by economic sector • the primary source of
Industrial Processes Agriculture, Forestry and other Land Use greenhouse gas emissions is
Waste Electricity/Heat Production
electricity and heat production
- responsible for 37%
Buildings Manufacturing/Construction
Transportation

6.44%
3.19% worldwide
9.84% • agriculture is the second
largest cause - responsible
4.10%

3.20% for 22% of global emissions


1.70%
• 10 countries produce more
than 68% of emissions
16.55%

Amina Destiny S Berete Zw333 V301

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
Amina Destiny S Berete Zw333 V301

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5/27/2025

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

Amina Destiny S Berete Zw333 V301

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

Amina Destiny S Berete Zw333 V301

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