Elephant poaching: Track the impact of Kenya's ivory burn.

2016) incorrectly described some Polish universities as " engaging " anti-scientific speakers. In fact, the speakers either hired university premises or participated in discussions at university conferences. Track the impact of Kenya's ivory burn Kenya's government delivered a powerful message against elephant poaching and the illegal ivory trade on 30 April by burning 105 tonnes of ivory, worth up to US$220 million. With stockpile destruction on the rise, it is important to evaluate the impact of this strategy on elephant populations. Since 1989, 21 countries have burned or crushed 263 tonnes of ivory — most of it (86%) in the past 5 years (see go.nature. com/ivory). However, there is no published evidence so far that these events reduce poaching. Destroying ivory stockpiles risks a perverse outcome: ivory becomes rarer, fetching higher prices and increasing poaching and illegal stockpiling (see M. 't Sas-Rolfes et al. This has prompted calls by some for a highly controlled legal ivory trade to secure elephant populations (J. 2010) — an option that ivory destruction removes. It is therefore crucial to track the effects of Kenya's largest-ever ivory burn. Time is short and the stakes are high. Change is indeed in the air for many butterflies — at least in their ecology, if not in their outer appearance (see 'Change is in the air' Nature 532, 403–404; 2016). However, the example you picture is not the European species Hesperia comma, but the North American Epargyreus clarus — both of which have the same vernacular name of silver-spotted skipper. Supervise Chinese environment policy China's latest five-year plan shifts its environmental law away from a pollution-control system and towards one that manages environmental quality (see Nature 531, 524–525; 2016). Regional efforts will now be subject to greater oversight to ensure that improvements are implemented across the country and to prevent local corruption. Under the plan, provincial environmental-protection departments will be responsible for unifying local monitoring and inspection programmes and for eliminating protectionism in local governments (see B. Zhang and C. Cao Nature 517, 433– 434; 2015). China's Ministry of Environmental Protection has already established separate environmental-management departments for water, air and soil. In my view, strict national supervision would help to keep these regional reforms on track and to make them more effective. The US Environmental Protection Agency, for example, China's primates: EU can't have it all ways We are concerned about the prospect of China becoming a …