A new climate era in the sub-Arctic: Accelerating climate changes and multiple impacts

Climate Change, Climate Modes, and Climate Impacts

■ Abstract Variability of the atmospheric and oceanic circulations in the earth system gives rise to an array of naturally occurring dynamical modes. Instead of being spatially independent or spatially uniform, climate variability in different parts of the globe is orchestrated by one or a combination of several climate modes, and global changes take place with a distinctive spatial pattern res...

Arctic marine mammals and climate change: impacts and resilience.

Evolutionary selection has refined the life histories of seven species (three cetacean [narwhal, beluga, and bowhead whales], three pinniped [walrus, ringed, and bearded seals], and the polar bear) to spatial and temporal domains influenced by the seasonal extremes and variability of sea ice, temperature, and day length that define the Arctic. Recent changes in Arctic climate may challenge the ...

Impact of climate and fisheries on sub-Arctic stocks

Understanding the drivers (internal and external) that determine the productivity of marine ecosystems is challenging. For example, the correct estimate of recruitment is essential to estimate fish stock abundance. In this Theme Section, 5 papers explore the effect of fishing and climate on population structure across sub-Arctic ecosystems. The studies focus on how temperatureand fishing-induce...

Impacts of climate change on rainfall indices estimation in western sub-basins of Iran

INTEGRATED REGIONAL CHANGES IN ARCTIC CLIMATE FEEDBACKS: Implications for the Global Climate System∗

A. David McGuire, F.S. Chapin III, John E. Walsh, and Christian Wirth 1U.S. Geological Survey, Alaska Cooperative Fish and Wildlife Research Unit, 2Institute of Arctic Biology, 3International Arctic Research Center, University of Alaska Fairbanks, Fairbanks, Alaska 99775; email: [email protected], [email protected], [email protected] 4Max-Planck-Institute for Biogeochemistry, Jena 07745, Germa...