.

Wednesday, February 20, 2019

Climate Change Paper Essay

worldwide climate change is one of the most urgent environmental problems we piss to acknowledge today. The world, as we have observed and recorded data everywhere the last several decades, is in the midst of an unexpected alteration. Temperature in the winter season is changing more than other seasons and mid to high line of latitude positions are showing comparatively bigger changes than those of low latitudes. The water vapor, carbon dioxide, ozone and many other chemical compounds in the atmosphere which absorb caloric radiation emitted by Earths surface and atmosphere, are increasing, bestow to the significant changes in our global climate.Over the past one coulomb years, Earths average surface temperature has change magnitude by rough 0.74 degrees Celsius and for the past 16 years from 1995-2010, 15 of those years were among the warmest years in the instrumental record of global surface temperatures since 1850. (IPCC, 2007) It has been shown that since the start of the Industrial Revolution, atmospheric carbon dioxide concentrations have leavenn exponentially and steadily as a result of the combustion of fossil fuels as an energy source for industrialised nations and developing nations a wish. Apart from that, deforestation also play a major(ip) role in global warming as forested countrys are typically cleared and burned for farming.The sea levels have as a result of the associated thermal expansion of ocean waters and melting of glaciers, shown to rise at a rate of 1.8 millimeters per year in the past century. A rise in sea levels pass on have serious implications on coastal environments or small islands from the perspectives of both natural ecosystems and human populations as a large portion of the human population live in coastal areas. There would be direct inundation of low-lying wetlands and dryland areas, ontogenyd salinity of estuaries and aquifers, heightened storm surges and floods.Apart from that, changes in the global climate patterns will exacerbate an already increasing problem of feeding the world population, which is predicted to increase to approximately 9 billion from the incumbent 7 billion by 2050. Dominant food brings like corn, rice, wheat, are likely subjected toabnormal changes intemperature and moisture that control growth, survival, and re take. Shifts in the geographic range of nigh return species may result in significant changes in regional land use patterns that come with social and potentially hefty economic costs. agree to a major study conducted by the Environmental Change unit at Oxford University which carried out a collaborative study with agricultural scientists from 18 countries to examine the regional and global implications of climate change, there would be an up to five percent reduction of global production of cereal crops and the current disparity in cereal crop production between develop and developing countries will be extended further.Results of the study, in in gredientral, showed that agricultural production in developed countries, which are mostly located in the equable regions, would increase while agricultural production in developing countries as a whole, would decrease by approximately ten percent, exacerbating the far-flung hunger issue common in those countries. As cultivation shifts polewards, pose growth and production would be largely affected by changes in the distribution of rainfall and the increase of ultraviolet radiation, and aggravated problems of salinity, erosion, and desertification. Extreme climatic events would also occur more frequently. Warmer temperatures may cause some crops to grow faster than usual and reduce yields during the summer time when the temperature goes high up the optimum exploitation temperature.Aside from that, more extreme weather events like floods and droughts with extreme temperature and precipitation changes can prevent cereal crops from draw at all. Take for instance, in 2008, the Miss issippi River flooded just prior the harvest period for several crops, resulting in a massive loss of receipts for farmers. Also, pests, widows weeds and fungi favored by a warmer climate would continue to proliferate and build up resistance through intimate recombination, to pose an even greater threat to current domesticated crop varieties. Many pest, weeds and fungi thrive under warmer, wetter climates with change magnitude carbon dioxide levels. Currently, farmers spend billions of dollars every year to struggle these threats and with the changes in climate, it is predicted that the ranges ofweeds and pests are likely to expand northward, potentially creating new problems for farmers crops previously unexposed to these species.In order to combat climate change from an agricultural standpoint, farmers can vary by adjusting lay patterns, practice imperfection management techniques in solvent to the changing weather patterns. There are various methods like build and strip c ropping and no-till reduced tillage that can help prevent soil loss due to wind and water erosion. Similarly, farmers could consider planting trees and shrubs for the endeavor of providing wind barriers to reduce soil erosion. Apart from that, crop rotations like the planting of corn for a growing season and soybean the next growing season, limits the likelihood that pests can proliferate and potentially reduce use of atomic number 7 fertilizers.Farmers could also apply manure or leguminous cover crops in place of chemical fertilizers. While such methods are useful to combat climate change, some of the methods may not be feasible in certain areas and even if they are feasible, the yields will not necessarily gather the amount of conventional farming.As the climate changes, the demand for Federal adventure management programs may increase and farmers could potentially invest in the evolution of droughttolerant varieties and even consider biotechnology. Genetically modified crops , do for the purpose of higher yields and little to no use of chemicals, may potentially negate the effects of climate change to a large extent if it is easily made and widely implemented. Unfortunately, there are limitations in each technology and it takes a variety of ecosystems to make changes that will cause a significance, in simplification the impact of climate change.ReferencesJones, R., Ougham H., Thomas H., Waaland S. (2013) Flooding deprives plants of oxygen, affecting respiratory processes, gene expression and acclimatorychanges in structure. The Molecular Life of kit and boodles, First edn. New Jersey, Wiley-Blackwell. 15 564-565IPPC (2007) Intergovernmental Panel on humour ChangeSheaffer, C and Moncada, K. (2013) Introduction to scientific agriculture Food, Crops, and Environment. Second edn. New Jersey, Wiley-Blackwell. 8 51-89Agrios, G.N. (1997) Plant Pathology, Academic PressRosenzweig, C. et al. (2000) Climate Change and U.S. Agriculture The Impacts of Warming and Extreme Weather Events on Productivity, Plant Diseases, and Pests, Center for Health and the Global Environment, Harvard Medical School (http//www.med.harvard. edu/chge/reports/climate_change_us_ag.pdf)Oerke, E.C. et al. (1994) Crop proceeds and Crop Protection Estimated Losses in Major Food and funds Crops, ElsevierEpstein, P.R. (1999) Climate and health. Science 285, 347348Harvell, C.D. et al. (2002) Climate warming and disease risks for terrestrial and naval biota. Science 296, 21582162

No comments:

Post a Comment