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: When more land is used for '''food production''' it must be taken from natural [[habitat]]s so involves [[Habitat Destruction|habitat destruction]] such as [[deforestation]].
: During '''food production''' in many locations [[fertiliser]]s are used which may be harmful to nearby [[habitat]]s. When [[nitrate]] [[fertiliser]]s are used they can be washed, by the rain, into local streams and rivers causing [[eutrophication]].
: '''Food production''' may also use [[pesticide]]s which include [[herbicide]]s which kill unwanted [[plant]]s and [[pesticideinsecticide]]s which kill unwanted [[animalinsect]]s. This further damages the local [[ecosystem]]s.===Food Security===: There are a number of challenges to ensure enough food can be produced to feed the [[human]] [[population]]:: Changing diets - As countries increase in wealth the population can often afford more meat products. This means more land is needed for farming of sheep, goats, pigs and cows.: Pests - As the transport of crops and animals across the world has increased, undesired [[species]] of [[animal]]s and [[plant]]s have also accidentally been introduced. These pests can destroy native crops or may be [[parasite]]s which harm domestic [[animal]]s.: [[Pathogen]]s - As the transport of crops and animals across the world has increased [[pathogen]]s have also been spread damaging crops and domestic animals.: Environmental Change - As [[climate]]s change due to [[Global Warming|global warming]] or due to other factors [[plant]]s may no longer be able to survive under the new environmental conditions. ===Improving Food Production===: Genetic Modification - As [[Genetic Engineering|genetic engineering]] improves it has allowed new genetic variants of [[plant]]s which may be pest resistant, grow faster or bigger increasing yields.: New agricultural techniques - Methods of farming are constantly improving, including new fertilisers, better land use and improved irrigation. ===References=======AQA==== :[https://www.amazon.co.uk/gp/product/1471851346/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851346&linkCode=as2&tag=nrjc-21&linkId=3ac654f4b0da781c49c855a1af4c92ea ''Food production, effects of global warming, page 233, GCSE Chemistry, Hodder, AQA '']:[https://www.amazon.co.uk/gp/product/1782945563/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1782945563&linkCode=as2&tag=nrjc-21&linkId=9a1d023a374038e6072f33c4f3cf808b ''Food production, page 123, GCSE Biology; The Revision Guide, CGP, AQA '']:[https://www.amazon.co.uk/gp/product/0008158754/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=0008158754&linkCode=as2&tag=nrjc-21&linkId=27ad53b0283feeff7fc5ae04a9e205f304 ''Food production, page 366-7, GCSE Biology; Student Book, Collins, AQA '']:[https://www.amazon.co.uk/gp/product/1471851338/ref=as_li_tl?ie=UTF8&camp=1634&creative=6738&creativeASIN=1471851338&linkCode=as2&tag=nrjc-21&linkId=425855d5890466e47189e1c21b67a1ea ''Food production, pages 295-306, GCSE Biology, Hodder, AQA '']