Tag

Nutrient Pollution

All articles tagged with #nutrient pollution

earth-science14 hours ago•17 min saved

Oceans Run Low on Oxygen, Threatening Earth's Balance

A new review warns that warming oceans and nutrient runoff are depleting dissolved oxygen in water bodies, with global ocean oxygen down ~2% since the 1950s and potentially falling another 1–7% by 2100, a trend that could disrupt aquatic ecosystems and destabilize the biosphere; the study argues aquatic deoxygenation should be added to the Planetary Boundaries framework, proposing indicators like dissolved oxygen concentration, proximity to capacity, shifts in oxygen‑sensitive species, and the Metabolic Index to track risk.

via Gizmodo|

#climate-change #dissolved-oxygen #earth-science

environment10 months ago•3 min saved

Massive Brown Seaweed Bloom Overtakes Atlantic Ocean

Since 2011, a massive and growing bloom of brown seaweed called Sargassum has been spreading across the Atlantic, driven by nutrient pollution from human activities and ocean currents, impacting coastal communities and ecosystems.

via Gizmodo|

#atlantic-ocean #climate-change #environment

environment2 years ago•4 min saved

Unveiling the Hidden Threat: Groundwater Pollution Choking the Great Barrier Reef

A new study has found that previously unquantified groundwater inputs are the largest source of new nutrients to the Great Barrier Reef, potentially changing how the reef is managed. Excess nutrients, such as nitrogen and phosphorous, can lead to losses of coral biodiversity, increased algae abundance, and the breeding success of crown-of-thorns starfish. While previous focus has been on reducing surface water nutrient inputs, this study highlights the need to address other sources, such as groundwater discharge. Strategic shifts in land management practices and exploring the reuse of nutrient-rich groundwater for agriculture are suggested to safeguard the reef's health for future generations.

via The Conversation Indonesia|

#ecosystem-management #environment #great-barrier-reef