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biodiversity impact cards?

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How are you arguing it? As an advantage or a disad? As a disad, I feel like alt causes usually thumps an aff advantage, but cards that are highly warranted and credible with "good" jargon like key stone species tend to outweigh generic evidence.

 

The more recent you can get and more specific you can get a scenario the easier it will be to prevent it from being labeled "biod is a stupid argument and empirically denied"

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Here's the card I use (it probably isn't the best). But yeah, find more specific/recent evidence as TheWingedDebater said.

Destruction of ocean environment will cause extinction

Sielen, 13 --- Senior Fellow for International Environmental Policy at the Center for Marine Biodiversity and Conservation at the Scripps Institution of Oceanography (Nov/Dec 2013, Alan B., Foreign Affairs, “The Devolution of the Seas: The Consequences of Oceanic Destruction,” http://www.foreignaffairs.com/articles/140164/alan-b-sielen/the-devolution-of-the-seas, JMP)

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. A visitor to the oceans at the dawn of time would have found an underwater world that was mostly lifeless. Eventually, around 3.5 billion years ago, basic organisms began to emerge from the primordial ooze. This microbial soup of algae and bacteria needed little oxygen to survive. Worms, jellyfish, and toxic fireweed ruled the deep. In time, these simple organisms began to evolve into higher life forms, resulting in the wondrously rich diversity of fish, corals, whales, and other sea life one associates with the oceans today. Yet that sea life is now in peril. 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. The prospect of vanishing whales, polar bears, bluefin tuna, sea turtles, and wild coasts should be worrying enough on its own. But the disruption of entire ecosystems threatens our very survival, since it is the healthy functioning of these diverse systems that sustains life on earth. Destruction on this level will cost humans dearly in terms of food, jobs, health, and quality of life. It also violates the unspoken promise passed from one generation to the next of a better future.

 

 

 

I like these cards for impact calc

 

Biodiversity loss outweighs nuclear war, economic collapse, and tyranny

Chen 2k [Jim, Professor of Law at the U of Minnesota, Minnesota Journal of Global Trade Winter 2000, pg. 211]
The value of endangered species and the biodiversity they embody is “literally . . . incalculable.” What, if anything, should the law do to preserve it? There are those that invoke the story of Noah’s Ark as a moral basis for biodiversity preservation. Others regard the Judeo-Christian tradition, especially the biblical stories of Creation and the Flood, as the root of the West’s deplorable environmental record. To avoid getting bogged down in an environmental exegesis of Judeo-Christian “myth and legend,” we should let Charles Darwin and evolutionary biology determine the imperatives of our moment in natural “history.” The loss of biological diversity is quite arguably the gravest problem facing humanity. If we cast the question as the contemporary phenomenon that “our descendants [will] most regret,” the “loss of genetic and species diversity by the destruction of natural habitats” is worse than even “energy depletion, economic collapse, limited nuclear war, or conquest by a totalitarian government.” Natural evolution may in due course renew the earth will a diversity of species approximating that of a world unspoiled by Homo sapiens – in ten million years, perhaps a hundred million.

Biodiversity loss itself outweighs human extinction.  We have a moral imperative to protect the other species on Earth.

Elliott 97 [Herschel, University of Florida Emeritus Philosophy, 1997 “A General Statement of the Tragedy of the Commons,” February 26, http://www.dieoff.org/page121.htm]

Third, all systems of ethical beliefs are hypotheses about how human beings can live on Earth. As such, they make factual claims. And like all factual claims, their truth or falsity depends on empirical evidence. For this reason, the sequence of biological events which the general statement of the tragedy of the commons describes is of decisive importance for ethical theory. It shows (1) that moral behavior must be grounded in a knowledge of biology and ecology, (2) that moral obligations must be empirically tested to attain necessary biological goals, (3) that any system of moral practices is self-inconsistent when the behavior, which it either allows or makes morally obligatory, actually subverts the goal it seeks. Thus empirical criteria give a necessary (though not a sufficient) condition for acceptable moral behavior. Regardless of the human proclivity to rationalize, any system of ethical beliefs is mistaken if its practice would cause the breakdown of the ecosystem which sustains the people who live by it. Indeed, biological necessity has a veto over moral behavior. Facts can refute moral beliefs Fourth, ecosystems are in dynamic equilibrium. In addition, technology and human institutions are constantly evolving in novel and unpredictable ways. Furthermore, living things must compete with each other for space and resources; yet each organism also depends symbiotically on the well-being of the whole for its own survival and well-being. Indeed the welfare of all organisms -- including human beings -- is causally dependent on the health and stability of the ecosystems which sustain them. As a consequence, the stability and well-being of the Earth's biosystem has moral priority over the welfare of any of its parts -- including the needs and interests of human societies and individuals.

Edited by totalnoob
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Biodiversity in specific hotspots checks extinction. Key to ag, medicine, and ecosystems

Mittermeier ‘11

(et al, Dr. Russell Alan Mittermeier is a primatologist, herpetologist and biological anthropologist. He holds Ph.D. from Harvard in Biological Anthropology and serves as an Adjunct Professor at the State University of New York at Stony Brook. He has conducted fieldwork for over 30 years on three continents and in more than 20 countries in mainly tropical locations. He is the President of Conservation International and he is considered an expert on biological diversity. Mittermeier has formally discovered several monkey species. From Chapter One of the book Biodiversity Hotspots – F.E. Zachos and J.C. Habel (eds.), DOI 10.1007/978-3-642-20992-5_1, # Springer-Verlag Berlin Heidelberg 2011. This evidence also internally references Norman Myers, a very famous British environmentalist specialising in biodiversity. available at: http://www.academia.edu/1536096/Global_biodiversity_conservation_the_critical_role_of_hotspots)

Extinction is the gravest consequence of the biodiversity crisis, since it is irreversible. Human activities have elevated the rate of species extinctions to a thousand or more times the natural background rate (Pimm et al. 1995). What are the consequences of this loss? Most obvious among them may be the lost opportunity for future resource use. Scientists have discovered a mere fraction of Earth’s species (perhaps fewer than 10%, or even 1%) and understood the biology of even fewer (Novotny et al. 2002). As species vanish, so too does the health security of every human. Earth’s species are a vast genetic storehouse that may harbor a cure for cancer, malaria, or the next new pathogen – cures waiting to be discovered. Compounds initially derived from wild species account for more than half of all commercial medicines – even more in developing nations (Chivian and Bernstein 2008). Natural forms, processes, and ecosystems provide blueprints and inspiration for a growing array of new materials, energy sources, hi-tech devices, and other innovations (Benyus 2009). The current loss of species has been compared to burning down the world’s libraries without knowing the content of 90% or more of the books. With loss of species, we lose the ultimate source of our crops and the genes we use to improve agricultural resilience, the inspiration for manufactured products, and the basis of the structure and function of the ecosystems that support humans and all life on Earth (McNeely et al. 2009). Above and beyond material welfare and livelihoods, biodiversity contributes to security, resiliency, and freedom of choices and actions (Millennium Ecosystem Assessment 2005). Less tangible, but no less important, are the cultural, spiritual, and moral costs inflicted by species extinctions. All societies value species for their own sake, and wild plants and animals are integral to the fabric of all the world’s cultures (Wilson 1984). The road to extinction is made even more perilous to people by the loss of the broader ecosystems that underpin our livelihoods, communities, and economies(McNeely et al.2009). The loss of coastal wetlands and mangrove forests, for example, greatly exacerbates both human mortality and economic damage from tropical cyclones (Costanza et al.2008; Das and Vincent2009), while disease outbreaks such as the 2003 emergence of Severe Acute Respiratory Syndrome in East Asia have been directly connected to trade in wildlife for human consumption(Guan et al.2003). Other consequences of biodiversity loss, more subtle but equally damaging, include the deterioration of Earth’s natural capital. Loss of biodiversity on land in the past decade alone is estimated to be costing the global economy $500 billion annually (TEEB2009). Reduced diversity may also reduce resilience of ecosystems and the human communities that depend on them. For example, more diverse coral reef communities have been found to suffer less from the diseases that plague degraded reefs elsewhere (Raymundo et al.2009). As Earth’s climate changes, the roles of species and ecosystems will only increase in their importance to humanity (Turner et al.2009). In many respects, conservation is local. People generally care more about the biodiversity in the place in which they live. They also depend upon these ecosystems the most – and, broadly speaking, it is these areas over which they have the most control. Furthermore, we believe that all biodiversity is important and that every nation, every region, and every community should do everything possible to conserve their living resources. So, what is the importance of setting global priorities? Extinction is a global phenomenon, with impacts far beyond nearby administrative borders. More practically, biodiversity, the threats to it, and the ability of countries to pay for its conservation vary around the world. The vast majority of the global conservation budget – perhaps 90% – originates in and is spent in economically wealthy countries (James et al.1999). It is thus critical that those globally flexible funds available – in the hundreds of millions annually – be guided by systematic priorities if we are to move deliberately toward a global goal of reducing biodiversity loss. The establishment of priorities for biodiversity conservation is complex, but can be framed as a single question. Given the choice, where should action toward reducing the loss of biodiversity be implemented first? The field of conservation planning addresses this question and revolves around a framework of vulnerability and irreplaceability (Margules and Pressey2000). Vulnerability measures the risk to the species present in a region – if the species and ecosystems that are highly threatened are not protected now, we will not get another chance in the future. Irreplaceability measures the extent to which spatial substitutes exist for securing biodiversity. The number of species alone is an inadequate indication of conserva-tion priority because several areas can share the same species. In contrast, areas with high levels of endemism are irreplaceable. We must conserve these places because the unique species they contain cannot be saved elsewhere. Put another way, biodiversity is not evenly distributed on our planet. It is heavily concentrated in certain areas, these areas have exceptionally high concentrations of endemic species found nowhere else, and many (but not all) of these areas are the areas at greatest risk of disappearing because of heavy human impact. Myers’ seminal paper (Myers1988) was the first application of the principles of irreplaceability and vulnerability to guide conservation planning on a global scale. Myers described ten tropical forest “hotspots” on the basis of extraordinary plant endemism and high levels of habitat loss, albeit without quantitative criteria for the designation of “hotspot” status. A subsequent analysis added eight additional hotspots, including four from Mediterranean-type ecosystems (Myers 1990).After adopting hotspots as an institutional blueprint in 1989, Conservation Interna-tional worked with Myers in a first systematic update of the hotspots. It introduced two strict quantitative criteria: to qualify as a hotspot, a region had to contain at least 1,500 vascular plants as endemics ( > 0.5% of the world’s total), and it had to have 30% or less of its original vegetation (extent of historical habitat cover)remaining. These efforts culminated in an extensive global review (Mittermeier et al.1999) and scientific publication (Myers et al.2000) that introduced seven new hotspots on the basis of both the better-defined criteria and new data. A second systematic update (Mittermeier et al.2004) did not change the criteria, but revisited the set of hotspots based on new data on the distribution of species and threats, as well as genuine changes in the threat status of these regions. That update redefined several hotspots, such as the Eastern Afromontane region, and added several others that were suspected hotspots but for which sufficient data either did not exist or were not accessible to conservation scientists outside of those regions. Sadly, it uncovered another region – the East Melanesian Islands – which rapid habitat destruction had in a short period of time transformed from a biodiverse region that failed to meet the “less than 30% of original vegetation remaining” criterion to a genuine hotspot.

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