Aerosol particle increase linked to more rainfall: study

By Nina Chestney, editing by Rosalind Russell15 January 2012 LONDON (Reuters) – A rise in the atmosphere of aerosols – miniscule particles which include soot, dust and sulphates – has led to more rainfall in certain parts of the world and could provide vital clues for future climate predictions, a scientific study shows. A deeper […]

Researchers assess effects of a world awash in nitrogen

Contact Skip Derra, skip.derra@asu.edu, 480-965-4823, Media Relations15 December 2011 Humans are having an effect on Earth’s ecosystems but it’s not just the depletion of resources and the warming of the planet we are causing. Now you can add an over-abundance of nitrogen as another “footprint” humans are leaving behind. The only question is how large […]

Reactive nitrogen has polluted remote wilderness since the end of the 19th century

Contact: Sofia Holmgren, Department of Earth and Ecosystem Sciences, Lund UniversityTel. +46 709 289778, Sofia.Holmgren@geol.lu.se  16 December 2011 Nitrogen from human activity has been polluting lakes in the northern hemisphere since the late 19th century. The clear signs of industrialisation can be found even in very remote lakes, thousands of kilometres from the nearest city. […]

Video: State of the Oceans 2011

20 November 2011 (Desdemona Despair) – Here’s Desdemona giving a presentation on the accelerating destruction of the oceans by various human activities. It’s basically Graph of the Day with narration. Download the slide deck: http://www.leftopia.com/presentations/State_Of_The_Oceans_2011.pdf http://www.leftopia.com/presentations/State_Of_The_Oceans_2011.pptx State of the Oceans 2011 Technorati Tags: ocean acidification,global warming,climate change,phenology,overfishing,ocean overexploitation,fish decline,mass extinction,extinction,coral,habitat loss,ecosystem disruption,dead zone,ocean anoxia,phosphorus,nitrogen,carbon,carbon dioxide,overpopulation,doom

Image of the Day: Satellite View of Toxic Algae Bloom in Lake Erie

Caption by Holli Riebeek14 October 2011 The green scum shown in this image is the worst algae bloom Lake Erie has experienced in decades. Such blooms were common in the lake’s shallow western basin in the 1950s and 60s. Phosphorus from farms, sewage, and industry fertilized the waters so that huge algae blooms developed year […]

Shellfish harvesters plagued by acidic ‘dead muds’

By Seth Koenig, BDN Staff7 October 2011 SOUTH PORTLAND, Maine — They’re called dead muds. Rising levels of carbon dioxide in the atmosphere combined with unregulated nitrogen pollution are having a deadly effect on Maine’s shellfish, some researchers say. Scientists are starting to measure the impact of increasingly acidic waters on coastal organisms, and what […]

Alarming ‘dead zone’ grows in Chesapeake Bay, on track to be largest ever

By Darryl Fears24 July 2011 A giant underwater “dead zone” in the Chesapeake Bay is growing at an alarming rate because of unusually high nutrient pollution levels this year, according to Virginia and Maryland officials. They said the expanding area of oxygen-starved water is on track to become the bay’s largest ever. This year’s Chesapeake […]

Phosphate: A critical resource misused and now running low

By Fred Pearce7 Jul 2011 If you wanted to really mess with the world’s food production, a good place to start would be Bou Craa, located in the desert miles from anywhere in the Western Sahara. They don’t grow much here, but Bou Craa is a mine containing one of the world’s largest reserves of […]

Ocean’s deadly low-oxygen zones growing, are sensitive to small changes in climate

By Kim DeRose, kderose@support.ucla.edu 16 June 2011 Fluctuations in climate can drastically affect the habitability of marine ecosystems, according to a new study by UCLA scientists that examined the expansion and contraction of low-oxygen zones in the ocean. The UCLA research team, led by assistant professor of atmospheric and oceanic sciences Curtis Deutsch, used a specialized […]

Record ‘dead zone’ predicted in Gulf of Mexico for Summer 2011

By Doyle Rice, USA TODAY16 Jun 2011 The so-called dead zone in the Gulf of Mexico — a region of oxygen-depleted water off the Louisiana and Texas coasts that is harmful to sea life — is predicted to be the largest ever recorded when it develops later this summer, scientists report. The unusually large size […]

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