A 42% increase in small-scale solar investment in the first quarter of 2014 has helped the global renewable energy sector grow rapidly, according to the latest research from Bloomberg New Energy Finance (BNEF).Worldwide, investment in clean energy grew by 10% in the first quarter of the year when compared to Q1 2013, reaching 47.7 billion. Although lower than the 58.1 billion invested in the final quarter of last year, the year-on-year increase...