Climate Change Essay - 1636 Words

Global climate change has positive and negative effects on marine and terrestrial ecosystems. The cause of global climate change is said to be because carbon dioxide is being emitted through the large scale burning of oil, coal and gas, with an additional contribution coming from clearing of tropical forests and woodlands which results in wildlife life destruction. The carbon dioxide traps heat from the sun in the earths atmosphere and prevents it from being sent back out into space. The heat that stays trapped in the atmosphere causes the global temperature to increase. Globally, average temperatures are expected to increase between 1.5 to 6.1 degrees Celsius in the next hundred years. nbsp;nbsp;nbsp;nbsp;nbsp; Climate change will†¦show more content†¦These effects have been demonstrated mainly in controlled environments such as growth chambers, greenhouses, and plastic enclosures. Higher levels of atmospheric CO2 also induce plants to close the small leaf openings known as stomatas through which CO2 is absorbed and water vapor is released. Thus, under CO2 enrichment crops may use less water even while they produce more carbohydrates. This dual effect will likely improve water-use efficiency. At the same time, associated climatic effects, such as higher temperatures, changes in rainfall and soil moisture, and increased frequencies of extreme meteorological events, could either enhance or negate potentially beneficial effects of enhanced atmospheric CO2 on crops. Meteorological Events such as hurricanes and heavy storms damage trees and hence reduce productivity. Droughts disrupt crop rotation, many plants are not adapted to such environments and are therefore unable to survive hence productivity is reduced. Page 1 For interior regions, there might be beneficial gains in agricultural production resulting from the indirect effects of a warmer climate and adequate precipitation, especially in higher latitudes across Canada and Russia. The increased carbon dioxide might also directly increase plant growth and productivity as well. In fact, this theory, known as the Carbon dioxide Fertilization Effect, has led some scientists to controversially suggest that the Greenhouse EffectShow MoreRelatedClimate Changes And Climate Change Essay1458 Words   |  6 PagesAbstract: Climate is inherently variable. Climate changes from place to place and it varies with time. The world now faces one of the complex and important issue it has ever had to deal with: climate change. Climate change today is one of the biggest concerns of human beings on the planet and the effects of climate change are undeniable and it may cause environmental, social, and economic threats to the planet. 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No one usually stops to think about how the food production systems for the food we eat is also a contributing factor to the rise of CO2. â€Å"I turn my life upside-down, start biking to work, plan t a big garden, turn down the thermostat so low I need the Jimmy Carter signature cardiganRead MoreClimate Change3273 Words   |  14 Pages1. Introduction Scientific evidence of the world’s changing climate is unequivocal. The expected impacts of the changing climate are likely to adversely affect the well being of all countries and particularly the poorest countries, some of which are in Africa. The changing climate has been manifested in the form of: increased severity and frequency of droughts; floods and storms; water stress, coastal erosion, and higher incidence of vector borne diseases among others. 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