Reduce the amount of waste we generate, avoiding unnecessary waste through more sustainable consumption habits such as carry the carrycot when going to buy, opt for products in bulk or poorly packaged, etc. Rethink stop to think if the products we want to buy are really necessary since the best residue is the one that does not occur. Given this situation, what can we do? To reduce the large amount of waste we can follow the rule of 4R, which is based on the principles of Rethink, Reduce, Reuse and Recycle. Waste represents one of the most important environmental problems because they pollute, cause biodiversity loss, accelerate climate change and its management entails a high consumption of resources and generates a great economic expense. Natural resources are limited, and if the entire world population consumed the same way we do, it would take 3 planets like Earth to meet demand. In Catalonia 9 million bottles of beverages are sold every day and European countries have increased the volume of waste per capita by more than 60% in recent years, many of which are single use. In Barcelona stands at 1,29 kg / inhabitant / day. Waste production in Catalunya in 2016 stands at 3.700 tonnes, equivalent to 1.36 kg / inhabitant / day. All the things we throw once used and all the materials that result from an industrial process and have no utility can be considered waste. Instead of calling us consumer society, we could call ourselves waste society.
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