Uruguay is the smallest Spanish-speaking country in South America. It is known for its impressive coastline, high standard of living, low poverty rates and a football team that tends to punch above its weight. It’s also one of the most sustainable countries in the world, running on 98 per cent renewable electricity, according to the US International Trade Administration. It has been a rapid and profitable transition. In 2007, the country was still using fossil fuels for a third of its energy generation,…