High quality grey literature too often gets lost in the large volume of reports that are produced. But there are ways of improving policy impact and bringing important research to the fore. In the butterfly effect theory, a single insect flapping its wings could start a chain of small changes that end up in cyclonic...

Around 372,000 people drown each year, mostly children in low-income countries. So why has there been such a lack of attention paid to the problem? In journalism parlance, any story which includes the phrase ‘kids will die’ is a front-page splash. But when it comes to the war-weary public health sector, it barely causes a...