This question may be nearly impossible to answer because of all the uncertainty involving the calculations, not to mention the disagreement that is likely to occur regarding where to draw the line on what energy is used directly and indirectly to make the bag. What I mean by that is do you count only the energy used by, say, the machines that process the raw materials that become the bags, or do you also count the energy used to make the raw materials and transport them to the plastic-bag factory? Do you count the energy used to power the lights in the factory? How about the soda machines in the cafeteria that serve the workers who make the bags? What about the computers used by the managers to oversee operations? If you do count those PCs, is it fair to count all the power they consume or just some, to account for the time when the PCs are used to surf the internet or to read email not directly related to the manufacture of the plastic bags? Having said all that, it's safe to say that the dollar cost of making a plastic bag is considerably less then the price of the bag, itself. So, if the market price of a bag is 25 cents, it's safe to assume the manufacturer's costs are much less. If it costs the manufacturer 15 cents to make, and if a third of that is the cost of energy, then about a nickel's worth of energy is used to make the bag. I guess the next step would be to figure how many kilowatt-hours a nickel will buy you.
Three natural resources that are saved by recycling steel are iron ore, coal, and limestone. Recycling steel reduces the need for extracting and mining these resources, which helps conserve natural reserves and reduce environmental impacts associated with the extraction process. Additionally, recycling steel requires less energy compared to producing steel from raw materials, resulting in significant energy savings.
Recycling steel can save up to 74% of the energy needed to produce it from raw materials. This reduction in energy consumption helps to conserve resources and reduce greenhouse gas emissions associated with steel production.
Potential energy can be saved up for future use. This type of energy is stored in an object based on its position or configuration, ready to be converted into kinetic energy when needed. Examples include a wound-up spring or water held in an elevated reservoir.
Using storm windows can save up to 20 of energy by reducing heat loss in a home.
Recycling saves energy, so if everyone in the world did it, then a lot of energy would be saved. If this is fossil fuel energy, then that is a very good thing. Man's contribution to global warming is caused by our creation of power by burning fossil fuels, which release greenhouse gases into the atmosphere. Building nuclear, like France does, is one way to economically help here. Another is to move entirely to renewable energy. 13% of man's contribution to global warming is caused by automobiles. Electric cars fueled by nuclear would certainly help here. Recycling is a great idea, but stopping burning fossil fuels (coal, oil and gas) would be much more effective.
Aluminium is called ''Energy Bank'' because the energy saved in recycling.
The energy saved by recycling one aluminum can is the equivalent to running a TV for four hours.
around 95%
40%
im not saying
3,750
You can run a TV for three hours on the energy saved by recycling one aluminium can.
It saves energy because it reuses its self so your not adding anything extra, so basically its a process of using the same amount of material at the sametime
$600/hour
they are recycled resources
wood
Three natural resources that are saved by recycling steel are iron ore, coal, and limestone. Recycling steel reduces the need for extracting and mining these resources, which helps conserve natural reserves and reduce environmental impacts associated with the extraction process. Additionally, recycling steel requires less energy compared to producing steel from raw materials, resulting in significant energy savings.