Climate Change Essay Example for Free

Climate Change Essay Once, I visited a hospital for my health checkup,there I saw a man with shattered skin,rashes all over the body;clearcut it was the case of allergy.Doctors are rushing and making report on it.After a week I again visited that hospital for my scheduled checkup,then I came to know a shocking news-that allergy case was the case of Ganga bath!! Alas! Holy river Ganga, ancient river Ganga ,that Ganga which takes away all the sins from mankind, today causing allergy,irritation,skin rashes!!! that man has to pay price for his religious belief†¦ Also scientists got some samples from Ganga from specific places having disease causing microbes. This small case itself indicate the change we have made in our nature. Change is the law of nature,change is inevitable and change is evergoing process,but Climate Change is one of the most complex,multifaceted and serious threat that the World face. Whether you are adding your bit to the heap of garbage piling up in your locality or not become meaningless when the garbage begins to rot-the stench will reach your nose too,Climate Change induced by global warming works much the same way. World famous scientists all over the country had evaluated climate change and came to conclusion that Greenhouse Gases ,CFC, Carbondieoxide and many other toxic gases are the cause of environment degradation.Though it is true scientifically,the root lies elsewhere;that is in the greed of human being.Our greed led to adavancement of technology and led us farther from peace and prosperity of all. Increasing consumption of electricity due to intiation of several new industries,disposal of garbage without treatment to maximize profit,use of environment hazardious substances like polythene in our daily life are concrete examples of human greed. People have been influencing the Biosphere for at least 8000 years,since the invention of Agriculture,but Climate Change has proposed a threat over our Agriculture.The most affected area of Climate Change will be Agriculture and its biodiversity. The first and foremost impact of climate change is in biodiversity specially Islands biodiversity.nearly one –fourth of the worlds countries are Island and they are treasure trove of biodiversity.Also they provide food,fresh water ,wood,fibre,medicine,fuel and other raw materials. But increasing sea level has given a alarm threat to them,The New Moore Island of India in Sunderbans has been consumed recently by rising sea,many other Pacific atoll nation Island of Kiribati,Islands of Vanuatu also submerged in early history.we are loosing huge . biodiversity;these are initial cases†¦ Rather IPCC has warned that a rise in sea levels of between 18 and 59cm by 2100 would be enough to submerge many other big islands, including Maldives and make them unhabitable,also of the 724 recorded animal extinctions in 400 years about half were Island species .also climate change will bring degradation of coastal environment and natural resources on which poor rural people depend.Higher rates of erosion and coastal land loss may vanish our islands In context of Agriculture,sea level rise will also cause increased salinity due to encroachment of the sea and saltwater intrusion into freshwater lenses,contributing to an increasing shortage of water supply and loss of agriculture land.The most vulnerable section will be the poor and marginal farmers with small landholdings because ‘extreme weather events’will specially occur in tropics,fundamental changes in rainfall pattern together with rising temperature will shorten growing season and reduce crop productivity . Acco.to World Bank 75% of 1.2 billion people are trapped in extreme poverty,so they will fail to adopt new rotation practices and thus most vulnerable to climate change. World wide farming is a significant source of greenhouse gas emissions accouting for 20% of total emissions.Atmospheric concentration of methane has more than doubled during the past 200 years.Natural wetlands,fossil fuels related to natural gas,coal mines coal industry,electric fermentation,rice fields,biomass burning,landfills accont for 75% of methane production in our environment. thus major source of greenhouse gases is agriculture itself. Rice fields are the most significant contributors of atmospheric methane accounting for 11-13% of the world’s total methane production. Also, rice production will need to expand by around 70% over the next 25 years to meet the demands of fast growing human population whose food demand is expected to double in developing world in next 40 years. Thus if we increase our crop area specially staple crop area in near future then the problem of global warming is likely to increase. Already in today’s era 800 million people are unnourished, in India only 30 million people suffer hunger,46% children are underweight and 17000 people are dying per day due to hunger on an average. Thus in near future we are going to face a great threat not only of climate change but also of food security†¦. However, Not all effects of climate change on agriculture are expected to be negative, most of the major food crops are C-3 plants including staple food like rice ,wheat, oat, barley will show increase in yield ranging from 25% to 64% due to increased CO2 level, also most of the noxious weed are C4 plants and their growth will be checked. But this is only one side of the coin ,increased temperature due to increase in CO2 level may rise the pest attack up to 25% and fungal disease attack up to 20% and also disturb our monsoon pattern.In an overview it can be said that it will create more and new problem rather than benefits because the worst sufferers would be farmers of Rainfed agriculture which cover 60% of all cultivable lands. Today humanbeings have become dependent on technologies which are dependent on non -renewable resources and produce illeffects in long run.nowdays we say that glaciers are shrinking;may be shrinking but more that the heart of the people and their philosophy is shrinking too.while the drastic effects of global warming has been discussed in many scientific circles,had their run on T.V. and even had well meaning Hollywood films but the need of the hour is to change ourselves,to reduce our luxurious wants. The need of the hour is to develop a) True sustainability,there should be synergies between climate mitigation strategies and development policies in areas of energy efficiency,fuel substitution,renewable ,afforestration,and land and waste management. b) The planning should not be for temporary economic gains and support,but for sustainability in future as well.There should be partnerships with communities,individuals,and private sector to frame effective measures to reduce the impact the effect of climate change. Today we all peoples of the world need to change our habbits ,not only in Agricultural practices but also in our daily life practicices†¦ Switching of fans and light before leaving room ,efficient use of water at home , proper garbage disposal at micro level, though seems to be a very minute step but the huge building of true sustainability will only form above these basic steps because this will be the 1st step against our greed, so step ahead and realize your own responsibility ,because it is not the time to curse the darkness but to light a small lamp. References: 1. â€Å"Know climate change† by Tanya Agarwal 2. â€Å"Global climate change† by Arnold J.Bloom 3. Science Reporter (CSIR) 4. IPCC website

Solar Heating Essay -- Solar Sun Energy Essays

Solar Heating It seems self-evident that, as a global society, we must transition eventually from the nonrenewable fossil fuels we currently rely on to renewable sources of energy such as biomass, wind, and particularly solar energy. The latter, though it involves some difficulties, which we will discuss shortly, is especially attractive, I think, because its source is the energy provided by the sun, which is so vast that, according to some, â€Å"if it could be effectively harnessed, two days’ worth of solar energy could provide more power than all known fossil fuel reserves.† (Duke Power) Because I will be getting a house of my own in just a few years, I decided that an interesting topic for study might be solar heating. There are two different kinds of solar heating, so I will briefly discuss them both: Active Solar Heating There are two different kinds of active solar heating systems: air and liquid. In both kinds of Active Solar Heating, flat plate solar energy collectors are installed on the roof or on the ground. Most often, the side that faces the sun has a glass or plastic cover and the inside space is a black absorbing material. Air systems use air to capture, transfer, and store heat produced by the collectors, while the liquid systems use water or an antifreeze solution. From there, fans or pumps deliver the heat to the house. Ultimately, I feel I would opt for the liquid system, because they cost less to operate and ta...

Child obesity Essay

Child obesity is a serious epidemic in America. One in every three kids in America is obese. Michelle Obama speaks at the launch of the â€Å"Lets Move† campaign. In front of cabinet member, senators, representatives and mayors, she discusses the campaign’s plans to fight obesity in America. Our best effort should be deployed to stop this epidemic that degrades the lives and future of our children by arming parents with the tools they need, equipping our school systems with healthier foods, making healthier foods available for our communities, and getting our kids to exercise more. Ms. Obama understands that not all parents have the necessary tools to make the right choices for their children. Even if the parents read a label on a food item, they may not understand what it means. The â€Å"Task Force on Child Obesity † movement will help to make food labels â€Å"consumer friendly† so parents can make better choices when buying food. The â€Å"Task Force on Child Obesity † will also help parents understand that they are responsible for building healthy habits in their kids, such as exercise . However, when the kids are at school the parents cannot control everything their children eat. Our schools do not serve healthy foods to our kids. Twice a day out kids eat unhealthy meals served at the schools. Ms. Obama said â€Å"If our kids are not getting adequate nutrition, even the best teachers will not be able to teach them effectively†(Obama 331). The kids need more fruits and vegetables in their diet. The â€Å"Child Nutrition Act† would give our school healthier standards. It would replace empty calorie meals with more fruits and vegetables, the fruits and vegetables they need for effective learning and brain functions. If the school are feeding our children unhealthy foods twice a day, it would undo the healthy eating habits learned at home. Once our schools begin to serve the healthy foods our kids need, the next step would be to ensure the parents have access to healthy food choices and not just fast food restaurants. Not all neighborhoods have grocery stores nearby to supply the community with healthy foods. If we invest 400 million dollars to build grocery stores around the country, we could eliminate â€Å"food deserts† in our communities. Not only will it give the parents a healthier choice over fast food restaurants, but it will also create jobs. Once the children are getting the nutrition they require, at home and at school, the last step is to get them to exercise more. Motivating our kids to exercise  can be done in various ways. Giving more â€Å"Presidential Active Lifestyle Awards† to kids who complete a specific exercise program is a great start. Hiring NFL, WMBA and other professional athletes is another way we will motivate our children to get more exercise. Child obesity is destroying the future of our children, but Ms. Obama outlines how we can stop it. By initiating the â€Å"Task Force on Child Obesity †, upgrading cafeteria food in schools, eliminating â€Å"food deserts†, and motivating out kids to exercise we can stop this growing epidemic . Ms. Obama effectively communicates her concerns and solutions in her speech. She also gives great examples as to why the parents are not always aware to the problem or may not have the options to help the situation. Although her intentions are well placed, I’m not convinced that her approach to solving child obesity is the most effective. Something should be done and if nothing else is being done about the obesity problem at least this will raise awareness.

Functionalist Perspective on Dating, Courting, and Other...

Dating, courting, and other pre-marriage arrangements are practices that are influenced by the time period, social conditions and constructs, biology, cultural norms, and institutional structures that surround people. Dating has changed a lot in the past century. In the 1920s to 1940s, dating involved a more informal dating. For the first time there were no chaperones on dates between males and females. The dates required no formal commitment to each other and there was more freedom. Previously the community and church established the dating rules, but now peers institute the rules. Instead of the man coming to the womens house, They went out where it required money. It is said that there was a control issue surrounding the change†¦show more content†¦To understand dating, courting, and other pre-marriage arrangements we must look at a particular time and place to understand the ways in which a society works and therefore how the people in that society go about activities like dating. In modern America, dating has emerged as an activity that is not often regulated by adults as it once had been. There are many explanations for this change including the change in lifestyle that industry and technological advances have brought about. Sociologists point out that the idea of romantic love did not even exist prior to the industrial revolution. Marriage was an institution that allowed a man and woman to enhance their chances of survival and quality of life with one another. Romantic love as we now know it did not exist as a concept. After the industrial revolution when people did not depend on each other as much to survive, the idea of romantic love first appeared. After this time some feminists and sociologists point out that marriage and motherhood was used to subjugate women to men and to keep them out of the work force. Dating at a young age is characterized as fun and is done for companionship rather than as a serious activity for the purpose of fin ding a lifelong mate. Group dating is a way in which students have been able to move away from traditional, two-person dating which implies intimacy to them. Doing things in groups saves