Freshwater Ecosystems

State of the Climate in Asia 2024

The World Meteorological Organization’s State of the Climate in Asia 2024 report warns that the region is warming nearly twice as fast as the global average, driving more extreme weather and posing serious threats to lives, ecosystems, and economies. In 2024, Asia experienced its warmest or second warmest year on …

Massive diesel spill clean-up under way, threatens river

Residents at Valkenskraal near De Rust are urged not to use the Grootrivier water both for human consumption and livestock following diesel spillage into the river on Tuesday. It's anticipated that clean-up operations, following a diesel spill of 42 000 litres on the Meiringspoort Pass near De Rust in the …

Resolving dying water bodies: Dealing with waste pollutants through lucrative means

Several possible causes to the dying water bodies in Ghana were raised in my previous article” Reviving the Dying Water bodies in the Light of Rising Pollution Levels and Population Growth”. Among the list were (1) dumping of refuse into water bodies as a common practice in some areas, as …

100-plus rivers and lakes to be improved

Freshwater improvement projects covering over 100 rivers and lakes across New Zealand are to receive grants of $44 million from the Government, Environment Minister Nick Smith announced today. "The Government has an ambitious plan to improve water quality in our rivers and lakes that involves stronger direction to councils, tighter …

Burundian gov't calls for urgent measures to stop pollution of Lake Tanganyika

Burundian Second Vice-President Joseph Butore on Tuesday called for urgent measures to stop the pollution of Lake Tanganyika. "Urgent and concrete measures need to be taken to stop the pollution of Lake Tanganyika waters," Butore said after visiting the shores of the lake in the capital city Bujumbura. "People entitled …

Freshwater and oceans: working together to face climate change

This policy brief, prepared by SIWI and Alliance for Global Water Adaptation (AGWA), is a contribution to the discussions and activities at UNFCCC meetings in order to improve understanding and application of gender and water knowledge in the climate arena. The interface between freshwater and oceans captures the vital development …

Predicting impact of climate change on water temperature and dissolved oxygen in tropical rivers

Predicting the impact of climate change and human activities on river systems is imperative for effective management of aquatic ecosystems. Unique information can be derived that is critical to the survival of aquatic species under dynamic environmental conditions. Therefore, the response of a tropical river system under climate and land-use …

Study: Brazilian mega-dams caused far more flooding than EIA predicted

Landsat pre- and post-dam images show the area flooded by two Madeira River dams is 69.8 percent greater than projected by the Environmental Impact Assessment (EIA). Study: Brazilian mega-dams caused far more flooding than EIA predicted A satellite study of the Santo Antônio and Jirau dams in the Amazon found …

Amazon coral reef at risk of damage if oil spills near Amazon river

Oil companies planning to drill near a vast coral reef at the mouth of the Amazon river have calculated that the unique ecosystem has a 30% chance of being affected in the event of an oil spill. 'We are rewriting the textbooks': first dives to Amazon coral reef stun scientists …

Ethiopia: Rescuing Lake Hawassa in Full Swing

Following the ecological threat of Hawassa Lake, which is a habitat for enormous aquatic animals and a livelihood for a number of people, stakeholders are striving to rescue the lake from drying. Indeed, the issue is real. As concerned professionals and stakeholders uttered, 'the Lake is in great trouble'!. Hawassa …

Water scarcity hotspots travel downstream due to human interventions in the 20th and 21st century

Water scarcity is rapidly increasing in many regions. In a novel, multi-model assessment, we examine how human interventions (HI: land use and land cover change, man-made reservoirs and human water use) affected monthly river water availability and water scarcity over the period 1971–2010. Here we show that HI drastically change …

Tanzania: Nemc Hits Mbowe With Sh18 Million Fine for Environment Offence

Hai — The government has removed irrigation equipment from a farm belonging to Hai MP and Chadema national chairman Freeman Mbowe. The National Environmental Management Council (Nemc) has also fined Mr Mbowe Sh18 million for conducting agricultural activities within 60 metres of a water source. Contacted yesterday, Mr Mbowe confirmed …

State seeks Sh2.5 billion to clean up polluted River Athi

The government is seeking Sh2.5 billion to clean up River Athi, which is threatened by pollution. Water Principal Secretary Fred Segor says the ministry is in the process of setting up a team of experts to develop a plan to guide the process. River Athi, whose source is Ngong Hills, …

Tanzania Lake Manyara Park under pressure from human activity

ARUSHA, Tanzania (Xinhua) -- Lake Manyara hosts many mammals of conservation concern, including the "big five," such as elephant, buffalo, lions, and hundreds of bird species, including flamingos that famously blush the water pink when they gather in numbers. Located in northern Tanzania, the water body is also home to …

Developing drought impact functions for drought risk management

Drought management frameworks are dependent on methods for monitoring and prediction, but quantifying the hazard alone is arguably not sufficient; the negative consequences that may arise from a lack of precipitation must also be predicted if droughts are to be better managed. However, the link between drought intensity, expressed by …

Alarm raised on proposed deal to build dams on Mara River

Conservationists have raised concerns over the proposed construction of dams on Mara River and its tributaries. East African Wild Life Society said it received an alert from Serengeti Watch, one of their conservation partners in Tanzania, that authorities in Kenya have proposed the building of dams. EAWLS executive director Julius …

Decreasing water levels in Lake Malawi: analyst cites need for action

Latest statistics showing declining water levels in Lake Malawi are a cause for worry, an Environmental Rights Activist has said. Recent findings by the Electricity Generation Company (EGENCO) have revealed that water levels in Lake Malawi have been declining over the years. At the beginning of every year, water levels …

Tanzania: Illegal Activities On Usambara Reduce Water Supply to Tanga

Tanga — Environmental degradation, including illegal alluvial gold mining and farming in steep slopes and on river banks in the East Usambara Mountains, are destroying water sources for over 300,000 Tanga City residents. The Tanga Urban Water Supply and Sanitation Authority (Tanga Uwasa) says it loses a total of Sh15 …

Tanzanians warn against diverting water from Great Ruaha River

DAR ES SALAAM Tanzania (Xinhua) -- Tanzanian authorities on Monday warned what they described as wealthy and politically well-connected individuals against diverting water from the Great Ruaha River, the lifeline of more than six million people. January Makamba, the east African nation’s minister of state in the Vice-President’s Office responsible …

Plans to drill for oil near newly discovered Amazon Reef alarm scientists

This time last year, scientists announced the discovery of a reef system at the mouth of the Amazon River — and right from the beginning, they began issuing warnings about companies’ plans to drill for oil in the region. Plans to drill for oil near newly discovered Amazon Reef alarm …

Rongai is drowning in raw sewer and garbage

Any visitor to Rongai - better known as ‘Diaspora’ - or even driving on Magadi Road at night cannot miss the waft of a foul smell. You would be forgiven to think that the place is home to a mega sewer treatment plant. Seasonal rivers of filth here flow undisturbed …

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