Biology
Breach
November 9, 2013, from Foreign Affairs, via WitsEndNJ
Of all the threats looming over the planet today, one of the most alarming is the seemingly inexorable descent of the world's oceans into ecological perdition. Over the last several decades, human activities have so altered the basic chemistry of the seas that they are now experiencing evolution in reverse: a return to the barren primeval waters of hundreds of millions of years ago....
Over the last 50 years -- a mere blink in geologic time -- humanity has come perilously close to reversing the almost miraculous biological abundance of the deep. Pollution, overfishing, the destruction of habitats, and climate change are emptying the oceans and enabling the lowest forms of life to regain their dominance. The oceanographer Jeremy Jackson calls it 'the rise of slime': the transformation of once complex oceanic ecosystems featuring intricate food webs with large animals into simplistic systems dominated by microbes, jellyfish, and disease. In effect, humans are eliminating the lions and tigers of the seas to make room for the cockroaches and rats.
November 9, 2009, from Las Vegas Sun
...Years before they showed up in Southern Nevada, the little mollusks colonized the Great Lakes, and researchers there have found that the rise in their quagga populations correlates with increases in dangerous toxins. There are two reasons for this: poop and algae. Quaggas can poop poison pellets and can turn swaths of open lake into algae-filled dead zones.
The scoop on the poop is this: Each mussel works like a tiny liver, absorbing toxins and heavy metals such as mercury, selenium, polychlorinated biphenyls (known as PCBs), and polycyclic aromatic hydrocarbons (or PAHs) from the lake water in a process called bioaccumulation.
But quaggas are not content to do a good deed. They later expel those chemicals and metals -- in the form of a highly concentrated pellet. Those toxic pellets sink to the lake floor.
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Climate
Chaos
November 9, 2015, from CommonDreams
With new evidence that the concentration of greenhouse gases broke yet another record in 2014, the head of the World Meteorological Organization (WMO) warned on Monday that the warming planet is hurtling "into uncharted territory at a frightening speed."
The United Nations weather agency's latest Greenhouse Gas Bulletin (pdf) reports that atmospheric concentrations of carbon dioxide (CO2) reached 397.7 parts per million (ppm) in 2014, substantially beyond the 350ppm level deemed "safe" by scientists to avoid global warming....
"Every year we report a new record in greenhouse gas concentrations," Jarraud continued. "Every year we say that time is running out. We have to act NOW to slash greenhouse gas emissions if we are to have a chance to keep the increase in temperatures to manageable levels."
November 9, 2012, from Foreign Policy
If climate scientists' prophesies of an ice-free Arctic Ocean pan out, the world will witness the most sweeping transformation of geopolitics since the Panama Canal opened. Seafaring nations and industries will react assertively -- as they did when merchantmen and ships of war sailing from Atlantic seaports no longer had to circumnavigate South America to reach the Pacific Ocean. There are commercial, constabulary, and military components to this enterprise. The United States must position itself at the forefront of polar sea power along all three axes....
Former U.S. Navy chief oceanographer David Titley estimates that "sometime between 2035 and 2040 there is a pretty good chance that the Arctic Ocean will be essentially ice-free for about a month" each year. If so, polar shipping lanes will cut transit distances by up to 40 percent, saving ship owners big bucks on fuel and maintenance. They could pass those savings on to producers and consumers of the cargo their vessels carry. Global warming, it appears, could bestow significant advantages on mariners, fostering economic growth in the bargain. New sources of wealth concentrate minds.
November 9, 2011, from Guardian
The world is likely to build so many new fossil-fuelled power stations, energy-guzzling factories and inefficient buildings in the next five years that it will become impossible to hold global warming to safe levels, and the last chance of combating dangerous climate change will be "lost for ever", according to the most thorough analysis yet of world energy infrastructure.
Anything built from now on that produces carbon will continue to do so for decades to come, and this "lock-in" effect will be the single factor most likely to produce irreversible climate change, the world's foremost authority on energy economics has found. If this infrastructure is not rapidly changed within the next five years, the results are likely to be disastrous.
"The door is closing," Fatih Birol, chief economist at the International Energy Agency, told the Guardian. "I am very worried - if we don't change direction now on how we use energy, we will end up beyond what scientists tell us is the minimum [for safety]. The door will be closed forever."
November 9, 2009, from Agence France-Presse
The president of the Maldives has warned that a failure to agree a deal on limiting greenhouse gas emissions in Copenhagen next month would be an act of "collective suicide".
"At the moment every country arrives at climate negotiations seeking to keep their own emissions as high as possible," President Mohamed Nasheed said here. "This is the logic of the madhouse, a recipe for collective suicide.
"We don't want a global suicide pact. We want a global survival pact."... Nasheed opened a two-day forum for 11 countries considered the most vulnerable to climate change, urging them to go carbon neutral to show the rich world the way forward.
November 9, 2009, from McClatchy Newspapers
...Every summer a dead zone of oxygen-depleted water the size of Massachusetts forms in the Gulf of Mexico; others have been found off Oregon and in the Chesapeake Bay, Lake Erie and the Baltic and Black seas. Some studies indicate that North Pole seawater could turn caustic in 10 years, and that the Southern Ocean already may be saturated with carbon dioxide....As the grim news mounts, a storm is brewing in Washington, D.C., over who should oversee oceans policies...However, NOAA, the nation's primary ocean agency, which includes the National Ocean Service, the nation's premier science agency for oceans and coasts... is missing from the task force's list...."NOAA is the nation's primary ocean agency," NOAA administrator Lubchenco told the subcommittee. "Our name says it all."
November 9, 2009, from McClatchy Newspapers
When it comes to combating global warming, Sen. Lindsey Graham is right where he loves to be -- ahead of the curve, in the mix on a major issue, at the table for high-level, bipartisan talks behind closed doors.
Graham, a South Carolina Republican, is working with Democratic Sen. John Kerry of Massachusetts and independent Sen. Joe Lieberman of Connecticut to craft a climate change bill.
They face the dual challenge of overcoming widespread GOP opposition and withstanding relentless attacks by Big Oil and allied energy interests.
November 9, 2009, from George Monbiot
There is no point in denying it: we're losing. Climate change denial is spreading like a contagious disease. It exists in a sphere which cannot be reached by evidence or reasoned argument; any attempt to draw attention to scientific findings is greeted with furious invective. This sphere is expanding with astonishing speed.... A survey last month by the Pew Research Centre suggests that the proportion of Americans who believe there's solid evidence that the world has been warming over the past few decades has fallen from 71 percent to 57 percent in just 18 months.... On Amazon.co.uk, books championing climate change denial are currently ranked at 1,2,4,5,7 and 8 in the global warming category(5). Never mind that they've been torn to shreds by scientists and reviewers, they are beating the scientific books by miles. What is going on?
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Resource
Depletion
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Recovery
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