Sentences with phrase «zones of algae bloom»

And that is an awful lot of land, with intensive agriculture being one of the driving forces for the loss of biodiversity, for nutrient overload of the seas (those dead zones of algae bloom), fresh water pollution and soil erosion.

Not exact matches

Kerry further outlined the impacts of pollution from farm runoff, which causes algae blooms and dead zones in the oceans, the massive buildup of plastic waste, and illegal fishing.

The causes are all human: overfishing wiping out key species, warmer waters from a warming world, dying coral which supported millions of species, pollution like fertilizers causing deadly algae blooms and dead zones,...

However, if one considers the enormous increase of reactive nitrogen in our biosphere, due to the use of synthesized fertilizer and the burning of fossil fuels, its impact is not part of the analysis, even tough this increase shows up in the eutrophication (nutrient enrichment) of open waters all over the world, resulting in excess algae, in some areas causing large algae blooms (as where they are going to hold the sailing regattas during the Olympics), red tides and dead zone, as the 8000 square mile dead zone in the Gulf of Mexico.

From historic droughts around the world and in places like California, Syria, Brazil and Iran to inexorably increasing glacial melt; from an expanding blight of fish killing and water poisoning algae blooms in lakes, rivers and oceans to a growing rash of global record rainfall events; and from record Arctic sea ice volume losses approaching 80 percent at the end of the summer of 2012 to a rapidly thawing permafrost zone explosively emitting an ever - increasing amount of methane and CO2, it's already a disastrous train - wreck.

While dead zones are not uncommon near inhabited coastlines, where industrial runoff can trigger algae blooms that suck all of the oxygen out of the water, they're now popping up in places scientists didn't expect — in the open Atlantic Ocean.

Pollution that impacts corals stems from a range of sources, including agricultural run - off — the fertilizer from which can cause algae blooms that result in dead zones — stormwater run - off from roads and urban areas into coastal waters, and poorly managed wastewater treatment plants that allow effluent to enter the waterways.

But some algae and plankton blooms can turn dangerous, either through the production of chemical toxins or by severely depleting the oxygen supply in the ocean and creating «dead zones» that suffocate marine creatures.