Calories And Specific Heat: 4.186 Joule = 1 calories. Another common energy unit is the calorie. The calorie, cal, is defined as the amount of energy (heat) needed to increase the temperature of one gram of water by 1oC. The kilocalorie, kcal, equals 1000 small calories.
For every one pound of post consumer waste 20 pounds of waste was produced. Companies will only recycle if it saves them money, the things we look to recycle is only a tiny amount of the trash.
Mass and energy are neither created nor destroyed during ordinary chemical reactions or physical changes. The mass of all the reactants is equal to the mass of all products, energy that goes into the reaction is equal to the energy that comes out.
Recycling is the process of converting waste materials into reusable objects to prevent waste of potentially useful materials, reduce the consumption of fresh raw materials, energy usage, air pollution (from incineration) and water pollution (from landfilling) by decreasing the need for "conventional" waste disposal and lowering greenhouse gas emissions compared to plastic production