World Water Day is an annual event that takes place on 22nd March. It is a means of focusing attention on the importance of freshwater, as well as emphasising the need for sustainable management of global water resources. Each year, World Water Day highlights a different aspect of freshwater, and the theme chosen for 2017, is “wastewater”, in support of Sustainable Development Goal 6.3, to improve water quality and reduce, treat and reuse wastewater. This article, written by CABI’s Global Health and Environmental Science Editors, Wendie Norris and Stephanie Cole, examines the importance of wastewater treatment in terms of resource recovery and environmental preservation, as well as its role in protecting human health.
‘First generation’ bioethanol is produced directly from food crops such as corn and sugarcane. Global production of bioethanol has been increasing in recent years due to policies in many countries that consider biofuel as a renewable alternative to fossil fuels. While it is widely recognised as means to improve future energy security, the rapid expansion of bioethanol production has caused controversy over competition for land use to grow crops for food as well as contributing to increased grain prices. However, a group of Japanese researchers have developed a technology that can produce bioethanol and animal feed simultaneously from the same crop, without the need for off-site processing.