Planning and management
The present study investigated diffusive emissions of methane (CH4) and nitrous oxide (N2O) to the atmosphere from three relatively small (3–120 km2) reservoirs (Masinga, Kamburu and Gitaru) on the Tana River (Kenya). Sampling was conducted biweekly in 2011, 2012 and 2013, at sampling sites upstream and downstream of these reservoirs while five sampling campaigns were carried out in 2011, 2012 and 2013 for different sites within each of the reservoirs.
The principle purpose of this report is to provide recommendations, advice and practical guidance, for establishing programmes to monitor and assess the distribution and abundance of plastic litter, also referred to as plastic debris, in the ocean.
Pollution from land-based run-off threatens coastal ecosystems and the services they provide, detrimentally affecting the livelihoods of millions people on the world's coasts. Planning for linkages among terrestrial, freshwater and marine ecosystems can help managers mitigate the impacts of land-use change on water quality and coastal ecosystem services.
Report of the Working Group 40 of the Joint Group of Experts on the Scientific Aspects of Marine Environmental Protection (GESAMP) on Guidelines or the monitoring and assessment of plastic litter and microplastics in the ocean
Revved up climate action’ needed to counter ‘prolonged’ and deadly storms like Cyclone Idai: UN
Environmental flows improve water management by ensuring a sustainable water supply meets the needs of people, agriculture, energy, industry and the environment within the limits of availability. The application of environmental flows supports the health of aquatic ecosystems and the well-being of people who depend on them. By providing a system for equitable allocation of water, based on available supply, the application of environmental flows can support development and poverty alleviation.
This report identifies the main issues affecting coastal and marine resources in South Africa, their immediate and direct causes, underlying pressures and root causes of these impacts and provides guidelines as to the best means for intervention to alleviate these problems. The work was undertaken in three phases modelled closely on the methodology developed for the Global International Waters Assessment project.
Tanzania has a coastline of 800 km stretching from latitude 4o 49’S at the border with Kenya to the border with Mozambique at latitude 10o 28’S. The continental shelf is narrow with the 200km contour depth about 4 km offshore, except at the Zanzibar and Mafia Channels where the shelf extends for up to 80 km. The islands within the continental shelf include Unguja and Mafia, as well as a number of small islets and reefs. Pemba lies beyond the continental shelf and is therefore oceanic.
This report is the result of an exercise that was undertaken in Mauritius as part of the GEFMSP project on Coastal Zone in the Sub-Saharan countries. The project consisted of three parts (i) Identification of sites and prioritisation of issues; (ii) Environment and socio-economic Impact analysis; and (iii) Causal chain analysis.
The ecosystems in Mozambique are relatively well preserved compared to other countries in the region, probably due to the fact that the country is less developed. On the other hand the potential for degradation of those sites is higher and would increase in the future in the view of the current development. There was not a clear-cut separation between Hot spot and sensitive areas.