Climate Change · Wetlands

Conserving wetlands to realize global climate and biodiversity goals

Guest Article by Mridhu Tandon [i]

The Sudd wetland in the Nile basin is one of the world’s largest freshwater ecosystems. Nourished by the White Nile-a tributary of the Nile, Sudd is a mosaic of open water and submerged vegetation, seasonally inundated woodlands, rain-fed grasslands, and floodplain scrubland. An integral part of Africa’s largest intact savannahs-the Jonglei plains, Sudd supports the world’s second-largest mammal migration after Serengeti. An estimated 1.3 million antelope: white-eared kob, taing, and Mongalla gazelles move from Sudd every year to reach Ethiopia’s Gambella National Park. Sudd has been in the international news recently. Revival of the 40-year-old 240-mile Jonglei canal will divert the waters of the White Nile around the Sudd wetland and send it to Egypt. The canal will desiccate the wetland, and end seasonal flooding of the Jonglei grasslands. Why is it necessary to protect Sudd from drying up? Why has the subject received global attention? More generally, why protect wetlands at all?

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AFRICA

AFRICA-2017: Grand Ethiopian Renaissance Dam on NILE remains the focus

Grand Renaissance Dam A new dam on the Nile faces threats from warming Climate change could play a role in exacerbating water conflict in Africa, like worsening geopolitical wrangling over issues like the Grand Ethiopian Renaissance Dam (GERD). The 6,450 MW hydropower project that’s nearing completion just 12 miles from the Ethiopia-Sudan border, has been a point of contention in the region. Scientists estimate a 50 percent increase in the flow variation from year to year, meaning that the basin could be flooded one year and experience a drought the next, along with a 10 to 15 percent increase in the annual flow of the river. It’s surprising that these kind of articles look at only one storage option: Large dam. WHY do they not look at other storage options? https://www.scientificamerican.com/article/a-new-dam-on-the-nile-reveals-threats-from-warming/ Continue reading “AFRICA-2017: Grand Ethiopian Renaissance Dam on NILE remains the focus”