Oldspeak: “Humankind faces an immediate and pressing choice between exerting ecological restraint and allowing global ecological catastrophe….as with terrestrial ecosystems, humankind has been expanding the natural capital of the ocean with little restraint…. although concealed beneath the waves, the evidence of wholesale degradation and destruction of the marine realm is clear, made manifest by the collapse of entire fisheries and the growth of deoxygenated dead zones, for example. The cumulative result of our actions is a serial decline in the ocean’s health and resilience; it is becoming demonstrably less able to survive the pressures exerted upon it, and this will become even more evident as the added pressures of climate change exacerbate the situation…The belief among scientists is that the window of opportunity to take action is narrow. There is little time left in which we can still act to prevent irreversible, catastrophic changes to marine ecosystems as we see them today…. Failure to do so will cause such large-scale changes to the ocean, and to the overall planetary system it supports, that we may soon find ourselves without the natural capital and ecosystem services necessary to maintain sustainable economies and societies as we know them, even in affluent countries…Without significant changes in the policies that influence human interactions with the marine environment, the current rate of ecosystem change and collapse will accelerate and direct consequences will be felt by all societies. Without decisive and effective action, no region or country will be immune from the socioeconomic upheaval and environmental catastrophe that will take place – possibly within the span of the current generation and certainly by the end of the century. It is likely to be a disaster that challenges human civilisation” –International Programme on the State of the Ocean Report (2013)
“This is no small thing. The scientists note that each of the earth’s five known mass extinctions was preceded by at least one of the “deadly trio”—acidification, warming and deoxygenation—and said they fear that “the next mass extinction” of sea life is already underway, the first in some 55 million years.” –Scott Martelle
“The Situation couldn’t be more clear. The “deadly trio” that preceded all other mass extinctions are in full bloom across the globe There is a very narrow window for possibly averting global ecological catastrophe. Yet if you spend any time watching fossil fuel and bankster corporation financed infotainement outlets, the wholly manufactured crises of ” U.S. Government “Shutdown” (except for 90% of military personnel btw) and “debt ceiling debate” are the most dire threats to humanity. And still we ever more “drill baby drill” permanently destroying countless watersheds. Untold species of life going extinct. Less oxygen in the seas and air than pre-industrial times as we relentlessly cut down the ancient forests that clean our air for paper to blow our noses and wipe our asses. This is not sustainable. Seems like substantive change will not come until it’s far too late to matter” -OSJ
By Scott Martelle @ Truthdig:
Remember the articles about how the ocean was absorbing more carbon and heat, giving us a slight reprieve from the effects of global warming? Not so good for the ocean, it turns out. Scientists from the International Programme on the State of the Ocean warn in a new report that the seas are changing much more rapidly than previously thought, and becoming increasingly inhospitable to life.
The ocean is shielding us from the worst effects of accelerating climate change by absorbing excess CO2 and heat from the atmosphere. The twin effects of this — acidification and ocean warming — are combining with increased levels of deoxygenation, caused by nutrient run-off from agriculture near the coast, and by climate change offshore, to produce what has become known as the ocean’s ‘deadly trio’ of threats whose impacts are potentially far greater because of the interaction of one on another. The scale and rate of this change is unprecedented in Earth’s known history and is exposing organisms to intolerable and unpredictable evolutionary pressure.
This is no small thing. The scientists note that each of the earth’s five known mass extinctions was preceded by at least one of the “deadly trio”—acidification, warming and deoxygenation—and said they fear that “the next mass extinction” of sea life is already underway, the first in some 55 million years. Given the role of the ocean in the worldwide ecosystem, from the plankton that absorb sun energy to the fish we eat—more about that in a moment—the rapid poisoning of the seas will have grave consequences for nearly all species. “These impacts will have cascading consequences for marine biology, including altered food web dynamics and the expansion of pathogens,” the report said.
Some of these conclusions were contained in a 2011 IPSO report, but the new one says the changes underway are occurring at a much faster and more intense rate than previously believed.
And then there’s the overfishing and poor fisheries management to add another stressor to the biological health of the seas:
Continued overfishing is serving to further undermine the resilience of ocean systems, and contrary to some claims, despite some improvements largely in developed regions, fisheries management is still failing to halt the decline of key species and damage to the ecosystems on which marine life depends. In 2012 the UN FAO determined that 70% of world fish populations are unsustainably exploited, of which 30% have biomass collapsed to less than 10% of unfished levels. A recent global assessment of compliance with Article 7 (fishery management) of the 1995 FAO Code of Conduct for Responsible Fisheries, awarded 60% of countries a “fail” grade, and saw no country identified as being overall “good.”
They offer some potential steps to lessen the impact, but given the lack of international response to the looming ecological crisis, don’t expect much action in this issue, either. Still, the scientists says the world community should:
—Cut global carbon dioxide emissions enough to limit the global temperature rise to less than 2 degrees Celsius. They note that “current targets for carbon emission reductions are insufficient in terms of ensuring coral reef survival and other biological effects of acidification.” And they say that current models don’t include added effects on the atmosphere from methane release from a melted permafrost and coral dieback, which “mean the consequences for human and ocean life could be even worse than presently calculated.”
—Emphasize small-scale fisheries, seek regional cooperation for management of shared environments and ban “destructive fishing gear” with laws that are enforced.
—“Build a global infrastructure for high seas governance that is fit-for-purpose. Most importantly, secure a new implementing agreement for the conservation and sustainable use of biodiversity in areas beyond national jurisdiction under the auspices of” the United Nations Convention on the Law of the Sea.