The shorter week can help the schools save money without the extra day to operate and have also demonstrated some unexpected positive changes like students performing better on tests, higher grades, and better behavior. The four-day school week has minimal flaws when compared to a five-day week; the only major flaw is who will supervise the students while they 're not in school. After conducting research, I believe the four-day school week should definitely be considered for implementation in urban areas. One concern is, how does the district shorten the school week by a day? Will the students receive the same education as a student who has the the five-day school week?
Recycling in general There are three most important key words which is the 3” R 's” recycle: using any material to make and to produce a new product Reuse :reuse the good material again and again Reduce :lowering , lesser the amount of waste produced To begin with , there are many different material to recycle or to reuse it in good way such as plastic bottles , some glass , another metal.. In addition , we take the trash and the material from the garbage and then remanufactured into perfect product again . Farther more , what we conceder there are a very large percentage of house hold still do not recycle to be reuse it in new products . In fact , some scientist did some searches they find that a pig percentage of house hold and good matial still not recycle , they look at the garbage they conclude that the garbage contain :
Recycling is something that can reduce the use of energy, and great way of controlling air, water and land pollution. In many countries, the Government helps the citizens in the environment by labeling all the trashcans around the city, which is a good way to make work less difficult during garbage collection. It is one way of conserving our natural resources, because we don’t use raw materials more often. Finally, it creates job. Citizens can be employed to collect and transform waste products into new, and useful materials.
The greatest threat to our planet is the belief that someone else will save it. These days, people believe that recycling is not important, and they think that these resources are meant to be used by us without limits. Also, they do not think that recycling has many benefits that can affect their life. There are many benefits of recycling than just reducing the amount of trash we throw out. For example, reducing the size of landfills by using waste products in a helpful way, we can slowly decrease the size of our landfills.
A: Summary According to a report from the British Institution of Mechanical Engineers, up to half of all the food produced worldwide ends up going to waste due to poor storage, transport and harvesting. In developed economies, such as in Europe, efficient farming methods mean that most of the wastage occurs due to cosmetic reasons. A lot of the food is thrown away because it has passed its sell-by date and because of the supermarkets rigorous food standards. However, the supermarkets are not the ones to be blamed, because it is, in fact, EU marketing rules. The aid agency “Save the children” says that there is enough food in the world to feed every child, but despite that, 2.3 million children die due to hunger every year.
Biologically Degradable Plastics In today’s consumerism driven world, plastics have been advancing as a basic necessity for different elements in our society, whether it be food packaging or automobile manufacturing. Plastics have enclosed our mindsets by providing a useful and efficient material for multipurpose use, but although of all these advantages, plastics lag behind with a major disadvantage of its raw material. In today’s world, plastics are manufactured from petrochemicals, which are extracted from fossil fuels or reservoirs of fuel. But these raw materials are one of the most common examples of non-renewable resources, signifying the lack of excess to sustain and manufacture plastics for lifetime. Therefore, the dependency of the human race on plastics cannot be changed because of the efficiency and usefulness, but the raw source of this can be changed to natural renewable sources that can last forever, or grown forever to manufacture plastics.
Experimental study on heat sink for thermoelectric generator 1 Introduction Thermoelectric devices are considered playing an important role in the green energy technology. In our daily life, enormous amount of waste heats is produced and they are not recycled. Thermoelectric generator can recover the waste heat to produce energy [1, 2]. In the United State, it is estimated that there are 20% to 50% of industrial energy input is lost as heat , this shows that many of the power have been wasted. Thus, recover of waste heat via different system, such as using thermoelectric generator, can bring great benefits and indirectly increase the efficiency of our system.
Recycling helps to prevent incineration, so it does not contribute to climate change. Furthermore, recycling centers are new job opportunities; therefore, with more employees, the more recyclable materials are recycled. ““EPA released significant findings on the economic benefits of the recycling industry… This equates to 1.57 jobs, $76,000 in wages, and $14,101 in tax revenues for every 1,000 tons of materials recycled,” (EPA). However, as much as recycling is beneficial, there are some disadvantages. As is is costly, recycling centers are often unhygienic.
Additionally, recycling struggles with climate change and recycling protects animals’ habitats. To illustrate when people need more paper, they’ll destroy more woodlands. Thereby, people should attempt to reuse wasted goods and recycle them to decrease the amount of used raw materials because recycling reduces our effect on climate change. In spite of the fact that recycling requires some energy, this energy is far less than generating new product from virgin material. As this argument is verified by many studies including recent study done for the government-funded Waste and Resources Action Programmer (WRAP).
As the Chinese proverb says, “the best time to plant a tree is 20 years ago – the next-best time is today”. Green projects should be given more money by the government. It is because the problems of the environment are very serious. The pollutant is harmful to citizens' health. Also, the government can enhance the image by giving more money on the green projects since this is an international issue.