Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Global warming capable of sparking mass species extinctions

12.04.2006


Joint study largely confirms earlier dire predictions of species loss from climate change



The Earth could see massive waves of species extinctions around the world if global warming continues unabated, according to a new study published in the scientific journal Conservation Biology.

Given its potential to damage areas far away from human habitation, the study finds that global warming represents one of the most pervasive threats to our planet’s biodiversity – in some areas rivaling and even surpassing deforestation as the main threat to biodiversity.


The study expands on a much-debated 2004 paper published in the journal Nature that suggested a quarter of the world’s species would be committed to extinction by 2050 as a result of global warming. This latest study picks up where the Nature paper left off, incorporating critiques and suggestions from other scientists while increasing the global scope of the research to include diverse hotspots around the world. The results reinforce the massive species extinction risks identified in the 2004 study.

"Climate change is rapidly becoming the most serious threats to the planet’s biodiversity," said lead author Dr. Jay Malcolm, an assistant forestry professor at the University of Toronto. "This study provides even stronger scientific evidence that global warming will result in catastrophic species loss across the planet."

Using vegetation models, the research is one of the first attempts to assess the potential effects of climate change on terrestrial biodiversity on a global scale rather than just looking at individual species. Scientists looked specifically at the effect that climate change would have on 25 of the 34 globally outstanding "biodiversity hotspots" – areas containing a large number of species unique to these regions alone, yet facing enormous threats.

"It isn’t just polar bears and penguins that we must worry about anymore," said Lee Hannah, co-author of the study and senior fellow for climate change at Conservation International. "The hotspots studied in this paper are essentially refugee camps for many of our planet’s most unique plant and animal species. If those areas are no longer habitable due to global warming then we will quite literally be destroying the last sanctuaries many of these species have left."

Since these biodiversity hotspots make up about one percent of the Earth’s surface, but contain 44 percent of all terrestrial vertebrate species and 35 percent of the world’s plant species, they are good indicators of the magnitude of global species that might be affected by rising CO2 levels in the atmosphere.

"These species lose their last options if we allow climate change to continue unchecked," said Dr. Lara Hansen, Chief Climate Scientist at global conservation group World Wildlife Fund. "Keeping the natural wealth of this planet means we must avoid dangerous climate change – and that means we have got to reduce carbon dioxide emissions."

Areas particularly vulnerable to climate change include the tropical Andes, the Cape Floristic region of South Africa, Southwest Australia, and the Atlantic forests of Brazil, Paraguay and Argentina.

These areas are particularly vulnerable because the species in these regions have restricted migration options due to geographical limitations.

Marshall Maher | EurekAlert!
Further information:
http://www.conservation.org

More articles from Ecology, The Environment and Conservation:

nachricht Dispersal of Fish Eggs by Water Birds – Just a Myth?
19.02.2018 | Universität Basel

nachricht Removing fossil fuel subsidies will not reduce CO2 emissions as much as hoped
08.02.2018 | International Institute for Applied Systems Analysis (IIASA)

All articles from Ecology, The Environment and Conservation >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Explanation for puzzling quantum oscillations has been found

So-called quantum many-body scars allow quantum systems to stay out of equilibrium much longer, explaining experiment | Study published in Nature Physics

Recently, researchers from Harvard and MIT succeeded in trapping a record 53 atoms and individually controlling their quantum state, realizing what is called a...

Im Focus: Dozens of binaries from Milky Way's globular clusters could be detectable by LISA

Next-generation gravitational wave detector in space will complement LIGO on Earth

The historic first detection of gravitational waves from colliding black holes far outside our galaxy opened a new window to understanding the universe. A...

Im Focus: Entangled atoms shine in unison

A team led by Austrian experimental physicist Rainer Blatt has succeeded in characterizing the quantum entanglement of two spatially separated atoms by observing their light emission. This fundamental demonstration could lead to the development of highly sensitive optical gradiometers for the precise measurement of the gravitational field or the earth's magnetic field.

The age of quantum technology has long been heralded. Decades of research into the quantum world have led to the development of methods that make it possible...

Im Focus: Computer-Designed Customized Regenerative Heart Valves

Cardiovascular tissue engineering aims to treat heart disease with prostheses that grow and regenerate. Now, researchers from the University of Zurich, the Technical University Eindhoven and the Charité Berlin have successfully implanted regenerative heart valves, designed with the aid of computer simulations, into sheep for the first time.

Producing living tissue or organs based on human cells is one of the main research fields in regenerative medicine. Tissue engineering, which involves growing...

Im Focus: Light-induced superconductivity under high pressure

A team of scientists of the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) at the Center for Free-Electron Laser Science in Hamburg investigated optically-induced superconductivity in the alkali-doped fulleride K3C60under high external pressures. This study allowed, on one hand, to uniquely assess the nature of the transient state as a superconducting phase. In addition, it unveiled the possibility to induce superconductivity in K3C60 at temperatures far above the -170 degrees Celsius hypothesized previously, and rather all the way to room temperature. The paper by Cantaluppi et al has been published in Nature Physics.

Unlike ordinary metals, superconductors have the unique capability of transporting electrical currents without any loss. Nowadays, their technological...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Save the date: Forum European Neuroscience – 07-11 July 2018 in Berlin, Germany

02.05.2018 | Event News

Invitation to the upcoming "Current Topics in Bioinformatics: Big Data in Genomics and Medicine"

13.04.2018 | Event News

Unique scope of UV LED technologies and applications presented in Berlin: ICULTA-2018

12.04.2018 | Event News

 
Latest News

Supersonic waves may help electronics beat the heat

18.05.2018 | Power and Electrical Engineering

Keeping a Close Eye on Ice Loss

18.05.2018 | Information Technology

CrowdWater: An App for Flood Research

18.05.2018 | Information Technology

VideoLinks
Science & Research
Overview of more VideoLinks >>>