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Climate and climate change [PDF]
The Earth's climate system at fine spatial and temporal scales is chaotic, with evolving weather patterns often notoriously difficult to predict very far in advance. At regional scales, surface conditions are modulated by seasonal to decadal oscillations in surface temperature, precipitation, sea-ice extent, and ocean upwelling.
Andy Ridgwell, Paul J. Valdes
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Discounting for Climate Change [PDF]
Abstract It is well-known that the discount rate is crucially important for estimating the social cost of carbon, a standard indicator for the seriousness of climate change and desirable level of climate policy. The Ramsey equation for the discount rate has three components: the pure rate of time preference, a measure of relative risk ...
Anthoff, David+2 more
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Changing the intellectual climate [PDF]
Calls for more broad-based, integrated, useful knowledge now abound in the world of global environmental change science. They evidence many scientists' desire to help humanity confront the momentous biophysical implications of its own actions. But they also reveal a limited conception of social science and virtually ignore the humanities.
Paige West+23 more
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Learning and climate change [PDF]
Learning – i.e., the acquisition of new information that leads to changes in our assessment of uncertainty – plays a prominent role in the international climate policy debate. For example, the view that we should postpone actions until we know more continues to be influential.
Michael Oppenheimer+18 more
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The year 2000 saw 150 000 people die as a result of climate change. This is a conservative World Health Organization estimate of excess mortality resulting from the relatively mild 0.8°C global warming experienced over the past century. As the average global temperature continues to climb by a projected 1.4°C–5.8°C over the next century, the annual ...
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The physics of climate variability and climate change [PDF]
The climate system is a forced, dissipative, nonlinear, complex and heterogeneous system that is out of thermodynamic equilibrium. The system exhibits natural variability on many scales of motion, in time as well as space, and it is subject to various external forcings, natural as well as anthropogenic.
Ghil, Michael, Lucarini, Valerio
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By predicting a global change of the Earth's climate, scientists are delivering an uncomfortable message. The release of the fourth IPCC report in 2007 has led to a surge of scepticism and criticism of both the science and the scientists. All this has received a lot of press coverage. Here I discuss the roots of climate change scepticism and how it has
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The unpredictably eruptive dynamics of spruce budworm populations in eastern Canada
We examine historical population data for spruce budworm from several locations through the period 1930–1997, and use density‐dependent recruitment curves to test whether the pattern of population growth over time is more consistent with Royama's (1984; Ecological Monographs 54:429–462) linear R(t) model of harmonic oscillation at Green River New ...
Barry J. Cooke, Jacques Régnière
wiley +1 more source
Climate change consists mainly of global warming, a result of the so-called greenhouse effect, which is caused by certain gases, including carbon dioxide (CO2), produced mainly through the combustion of fossil fuels, such as coal and oil. Global warming is a severe threat for future populations because it can cause a considerable rise in sea levels, a ...
B. Roca Villanueva+2 more
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Geographic variation in walking activity in the red flour beetle Tribolium castaneum
This study examined whether there is geographic variation in field populations, focusing on the moving activity in the red flour beetle Tribolium castaneum. Results showed significant differences in moving activity among field populations but no correlation with latitude or meteorological factors.
Kentarou Matsumura
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