PDF Archive

Easily share your PDF documents with your contacts, on the Web and Social Networks.

Share a file Manage my documents Convert Recover PDF Search Help Contact



Afrixa .pdf


Original filename: Afrixa.pdf
Title: Microsoft Word - Afrixa.docx
Author: James

This PDF 1.3 document has been generated by Microsoft Word / Mac OS X 10.6.7 Quartz PDFContext, and has been sent on pdf-archive.com on 11/04/2011 at 12:46, from IP address 94.174.x.x. The current document download page has been viewed 885 times.
File size: 292 KB (2 pages).
Privacy: public file




Download original PDF file









Document preview


The impacts of Global Warming – Africa
Evidence for global warming in Africa
Africa is steadily warming. The continent is now 0.5ªC warmer than in 1990. This has caused:
>
Increased droughts – as arid/semi arid areas become even drier
>
More unreliable rainy seasons, and overall, rainfall is decreasing
>
More localised rain, making it harder to predict rainfall
Why is Africa vulnerable to climate change?
Africa is vulnerable as many countries depend on
agriculture for their economy. Farming is rain led, and
vulnerable to shortages of water. In 2007, 14 African
countries suffered from water scarcity, with 11 more
countries joining them by 2032. Rainfall is declining in
areas that need it most – such as the Sahel.
Global warming and debt
Another reason that Africa is vulnerable is because of its
debt crisis. One of the ways countries are trying to
reduce their debt is to increase overseas trade through
the export of cash crops. This has lead to forest
clearance for commercial farming. This is likely to
increase soil erosion. This often leads to desertification.
Famine and malnutrition will increase, as the amount of
farmland decreases, placing Africa’s food security
under threat.
Physical and Human impacts of climate change in Africa
Physical impacts
- Fragile habitats may be destroyed by global warming, and between 20-50% of
species in Africa could face extinction.
- Many low lying areas of Africa are vulnerable to sea level rise – with cities, roads and
infrastructure at risk from flooding and increased erosion in areas like Ghana, Togo
and Benin.
Human factors
- As rainfall patterns change, with rainfall becoming more seasonal, most areas of
Africa will see a reduction in food supply.
- Malaria is also on the increase, as increased humidity and rainfall causes the
mosquito to spread over wider areas. In Southern Africa, it is estimated that the area
affected by malaria will double, with the number of people affected rising to 7.2
million – an increase of 5.2 million.
Now attempt the questions overleaf.
Unit 1 Paper – Global Challenges
“The World at Risk” Chapter

Questions
1) Define the following key words: Debt crisis, Desertification, Food security, Cash crops.
2) Attempt the question (a to d) below.
3) Essay question “Are the consequences of global warming worse for Africa than for the
Arctic? Discuss. [15]

Find the answers for (a to d) at http://bit.ly/fGIGVf, or use your
smartphone to find the answers using this QR code (right).
Simply scan the image with your camera. (Compatible phones only)

Unit 1 Paper – Global Challenges
“The World at Risk” Chapter


Afrixa.pdf - page 1/2
Afrixa.pdf - page 2/2

Related documents


afrixa
ijetr2216
41i16 ijaet0916831 v6 iss4 1803to1812
lecture note hazard
spotlight livestock impacts on the environment
finding the renewable sources of energy


Related keywords