The creation of waste material is among the major threats to the environment and a worldwide challenge for environmentalists. Landfills continue to grow as more of the world's people purchase disposable goods on a regular basis. Some products can make effective use of waste materials, recycling them into things that are new and useful that give waste materials a second purpose and keep them from ending up in a landfill.
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Many new paper products use waste paper, cardboard and wood in their manufacture. These products usually include a notice that states their post-consumer recycled content, or the percentage of the paper that comes from a waste source, with the remainder coming from new material. Everything from book pages and newspapers to paper bags and shipping boxes come from waste paper that manufacturers convert to pulp and then reuse. To make the paper suitable for printing, manufacturers add a bleaching agent and fresh paper pulp.
Biodiesel fuel is an environmentally attractive means of powering automobiles. It comes from the used oil that restaurants and food service companies produce when they cook large quantities of food. Biodiesel fuel puts that oil, which originally comes from animal and plant sources, into an engine that can burn it instead of petroleum-based fuel. Most conventional diesel engines can burn biodiesel without any modifications, and gasoline-powered vehicles can use biodiesel fuel after undergoing an engine-conversion process.
Modern playgrounds use synthetic ground surfaces that make use of plastic and rubber waste materials. Many different companies turn old tires into rubber mulch, which can be used to create soft, safe play surfaces that come in a wide range of colours. Artificial turf, which is used to replace natural grass in indoor stadiums, provides the option of low-maintenance sports fields; it is made from repurposed plastic waste, such as plastic shopping bags.
The aluminium cans that line grocery store aisles often come from recycled cans. According to the website Earth911, aluminium cans represent the most valuable beverage containers from a recycling perspective. Besides eliminating waste aluminium, recycled aluminium cans also eliminate the need to mine and smelt additional aluminium, which are energy-intensive processes.
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