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First of all, the following countries were analysed: US, Argentina, Brazil, France, Germany, Switzerland, UK, Russia, Kenya, South Africa, China, India and Indonesia.
It must be noted how, for example, Germany will have to deal with problems connected to climate change, whereas China (followed by India, Russia and Brazil) will have to become more committed as regards environmental protection. South Africa, France and Argentina will have to tackle the water pollution problem.
As regards energy conservation, Brazil and Russia will face less problems than the other nations examined. The same goes for China, Russia and Indonesia for the hunger problem.
Food safety will be the main problem for Kenya, a country that will have instead less problems with waste together with China, South Africa, India and Germany.