نتایج جستجو برای: global warming and climate changes

تعداد نتایج: 17003098  

Journal: :Philosophical transactions of the Royal Society of London. Series B, Biological sciences 2010
Jane Memmott Claire Carvell Richard F Pywell Paul G Craze

Climate change is expected to drive species extinct by reducing their survival, reproduction and habitat. Less well appreciated is the possibility that climate change could cause extinction by changing the ecological interactions between species. If ecologists, land managers and policy makers are to manage farmland biodiversity sustainably under global climate change, they need to understand th...

Journal: :Journal of earth science & climatic change 2011
David B Resnik Daniel A Vallero

Some engineers and scientists recently have suggested that it would be prudent to consider engaging in geoengineering to mitigate global warming. Geoengineering differs from other methods for mitigating global warming because it involves a deliberate effort to affect the climate at a global scale. Although geoengineering is not a new idea, it has taken on added significance as a result of diffi...

Journal: :Global change biology 2013
William J Sydeman Jarrod A Santora Sarah Ann Thompson Baldo Marinovic Emanuele Di Lorenzo

Changes in variance are infrequently examined in climate change ecology. We tested the hypothesis that recent high variability in demographic attributes of salmon and seabirds off California is related to increasing variability in remote, large-scale forcing in the North Pacific operating through changes in local food webs. Linear, indirect numerical responses between krill (primarily Thysanoes...

2009
Pierre Jacquet Valérie Reboud

Efforts by scientists, civil society and some politicians to sound the alarm on the threats of global warming, climate change, biodiversity damages, endemics and, more broadly, all environmental issues, seem to have resulted in an increasingly shared consensus about the need for action. Yet, such action has been particularly slow in coming and has not so far resulted in any “environmental New D...

Journal: :Ecology letters 2010
John J Wiens David D Ackerly Andrew P Allen Brian L Anacker Lauren B Buckley Howard V Cornell Ellen I Damschen T Jonathan Davies John-Arvid Grytnes Susan P Harrison Bradford A Hawkins Robert D Holt Christy M McCain Patrick R Stephens

The diversity of life is ultimately generated by evolution, and much attention has focused on the rapid evolution of ecological traits. Yet, the tendency for many ecological traits to instead remain similar over time [niche conservatism (NC)] has many consequences for the fundamental patterns and processes studied in ecology and conservation biology. Here, we describe the mounting evidence for ...

Journal: :The Journal of experimental biology 2010
A A Hoffmann

Physiological limits determine susceptibility to environmental changes, and can be assessed at the individual, population or species/lineage levels. Here I discuss these levels in Drosophila, and consider implications for determining species susceptibility to climate change. Limits at the individual level in Drosophila depend on experimental technique and on the context in which traits are eval...

Journal: :Personality & social psychology bulletin 2010
Irina Feygina John T Jost Rachel E Goldsmith

Despite extensive evidence of climate change and environmental destruction, polls continue to reveal widespread denial and resistance to helping the environment. It is posited here that these responses are linked to the motivational tendency to defend and justify the societal status quo in the face of the threat posed by environmental problems. The present research finds that system justificati...

City and human are two different human-made and natural systems which has an effect on each other. The formation of a residence depends on the climatic conditions. Construction of a residence shows that people have adapted themselves and their activities to it; while the climatic conditions play an important role in comfort in human environments. Thus, the buildings and environmental spaces sho...

2008
A. A. Scaife T. Zhou Yoon N. Zeng

We use a simple methodology to test whether a set of atmospheric climate models with prescribed radiative forcings and ocean surface conditions can reproduce twentieth century climate variability. Globally, rapid land surface warming since the 1970s is reproduced by some models but others warm too slowly. In the tropics, air-sea coupling allows models to reproduce the Southern Oscillation but i...

2008
Hiram Levy M. Daniel Schwarzkopf Larry Horowitz V. Ramaswamy K. L. Findell

[1] This study examines the impact of projected changes (A1B ‘‘marker’’ scenario) in emissions of four short-lived air pollutants (ozone, black carbon, organic carbon, and sulfate) on future climate. Through year 2030, simulated climate is only weakly dependent on the projected levels of short-lived air pollutants, primarily the result of a near cancellation of their global net radiative forcin...

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