Quasi-decadal variability in solar irradiance has been suggested to exert a substantial effect on Earth's regional climate. In the North Atlantic sector, the 11-year solar signal has been proposed to project onto a pattern resembling the North Atlantic Oscillation (NAO), with a lag of a few years due to ocean-atmosphere interactions. The solar/NAO relationship is, however, highly misrepresented...

How—indeed whether—the Sun’s variable energy outputs influence Earth’s climate has engaged scientific curiosity for more than a century. Early evidence accrued from correlations of assorted solar and climate indices, and from recognition that cycles near 11, 88 and 205 years are common in both the Sun and climate.1,2 But until recently, an influence of solar variability on climate, whether thro...

TOPIC 1 : CLIMATE AND ENVIRONMENT ................................ 1 TRENDS AND VARIATION IN MONTHLY RAINFALL AND TEMPERATURE IN SURINAME ....................................................................2 EVALUATION OF THE EFFECTS OF ENSO TELECONNECTION ON CLIMATIC PARAMETERS FLUCTUATIONS IN KHORASAN PROVINCE I.R. OF IRAN..........................................................................

Understanding niche evolution, dynamics, and the response of species to climate change requires knowledge of the determinants of the environmental niche and species range limits. Mean values of climatic variables are often used in such analyses. In contrast, the increasing frequency of climate extremes suggests the importance of understanding their additional influence on range limits. Here, we...

[1] The Atlantic Multidecadal Oscillation (AMO) is a near-global scale mode of observed multidecadal climate variability with alternating warm and cool phases over large parts of the Northern Hemisphere. Many prominent examples of regional multidecadal climate variability have been related to the AMO, such as North Eastern Brazilian and African Sahel rainfall, Atlantic hurricanes and North Amer...

Understanding the eco-evolutionary dynamics of species under rapid climate change is vital for both accurate forecasting of biodiversity responses and for developing effective management strategies. Using an individual-based model we demonstrate that the presence and form (colour) of inter-annual variability in environmental conditions can impact the evolution of dispersal during range shifts. ...

[1] Traditionally the Earth’s reflectance has been assumed to be roughly constant, but large decadal variability, not reproduced by current climate models, has been reported lately from a variety of sources. We compare here the available data sets related to Earth’s reflectance, in order to assess the observational constraints on the models. We find a consistent picture among all data sets of a...

The performance of two methods to reconstruct Northern Hemisphere temperature histories of the past millennium is analyzed by applying them to the known development of an extended climate model simulation. The MBH-method underestimates lowfrequency variability significantly, whereas Moberg’s method operates satisfactorily. Some

1. Introduction The US CLIVAR (Climate Variability and Prediction) Program, now in its eighth year, was designed to investigate the season-to-season, year-to-year, and decade-to-decade fluctuations in the climate. These climate variations influence nearly all spheres of human activity: our clothing, shelter, and energy needs; our ability to grow crops and raise livestock for food and fiber; and...

Recent warming inconsistent with natural association between temperature and atmospheric circulation over the last 2000 years P. A. Mayewski and K. A. Maasch Climate Change Institute, Bryand Global Sciences Building, University of Maine, Orono, Maine 04469, USA Received: 11 November 2005 – Accepted: 24 April 2006 – Published: 30 June 2006 Correspondence to: P. A. Mayewski ([email protected])