Influence Of Climate Change On The Changing Arctic And Sub Arctic Conditions

The current warming trends in the Arctic may shove the Arctic system into a seasonally ice-free state not seen for more than one million years. The melting is accelerating, and researchers were unable to identify natural processes that might slow the deicing of the Arctic. Such substantial additional melting of Arctic and Antarctic glaciers and ice sheets would raise the sea level worldwide, flooding the coastal areas where many of the world's population lives. Studies, led by scientists at the National Center for Atmospheric Research (NCAR) and the University of Arizona, show that greenhouse gas increases over the next century could warm the Arctic by 3-5°C in summertime. Thus, Arctic summers by 2100 may be as warm as they were nearly 130,000 years ago, when sea levels eventually rose up to 6 m higher than today.

Understanding Present and Past Arctic Environments: An Integrated Approach from Climate Change Perspectives provides a fully comprehensive overview of the past, present and future outlook for this incredibly diverse and important region. Through a series of contributed chapters, the book explores changes to this environment that are attributed to the effects of climate change. The book explores the current effects climate change has had on Arctic environments and ecosystems, our current understanding of the effects climate change is having, the effects climate change is having on the atmospheric and ocean processes in this region. The Arctic region is predicted to experience the earliest and most pronounced global warming response to human-induced climatic change, thus a better understanding is vital. Presents a thorough understanding of the Arctic, it’s past, present and future Provides an integrated assessment of the Arctic climate system, recognizing that a true understanding of its functions lies in appreciating the interactions and linkages among its various components Brings together many of the world's leading Arctic researchers to describe this diverse environment and its ecology

The Arctic is the most northern part of our Earth. It is a huge area that spans over several countries including; Canada, Denmark (Greenland), Finland, Iceland, Norway, Sweden, Russia, and the USA. However, the largest part of the Arctic is not on land but is covered by water – the Arctic Ocean. For hundreds of thousands of years, large parts of the Arctic Ocean were covered by ice all year around. Many animals, such as polar bears, Arctic foxes, seals, fish and birds, and even some people have made this icy place their home. They have learned to live with the ice, and some animals even need it to live. But recently, things in the Arctic have been changing. You have probably already heard a lot about Climate Change. Climate Change impacts the long-term weather (climate) everywhere on our planet. Many areas get warmer, some get colder, and everywhere we see more extreme or unusual weather, such as storms, floods or droughts. But nowhere is Climate Change happening as fast as in the Arctic. You might have also heard about the “2°C goal”. This is a goal that many governments around the world have agreed to. The plan is essentially to make sure the average global warming of our atmosphere stays at less than 2°C compared to what people like to call “pre-industrial time” (the year 1948 is used as a reference). Right now, most of the world is at around 0.8°C warming. In the Arctic, we are already at 2.3°C warming – that is 0.3°C above what should be the absolute maximum according to the “2°C goal”. Now you probably ask why it is so bad that the Arctic is getting a bit warmer. That should make it a nicer place to live, right? Unfortunately, the warm temperature means that the ice that has covered the Arctic Ocean for all this time is melting. It looks like that will change the Arctic Ocean forever and with it the animals and people that call the Arctic their home. In this collection, we want to tell you what we, as scientists, know about the changes in the Arctic; how we investigate these changes and what we have learned from our travels to the Arctic and the analyses we do in our research institutes. We will tell you about how the higher temperatures in the Arctic change the ice. How very tiny animals can have a huge impact. We want to introduce you to life in the ice, under the ice, and at the seafloor. We will talk about processes that make the Arctic Ocean so special and chemicals that can travel from our homes and cities all the way to the Arctic.

This book provides in-depth information about the sea ice in the Arctic at scales from paleoenvironmental variability to more contemporary changes during the past and present centuries. The book is based on several decades of research related to sea ice in the Arctic and its variability, sea ice process studies as well as implications of the sea ice variability on human activities. The chapters provide an extensive overview of the research results related to sea ice in the Arctic at paleo-scales to more resent scales of variations as well as projections for changes during the 21st century. The authors have pioneered the satellite remote sensing monitoring of sea ice and used other monitoring data in order to study, monitor and model sea ice and its processes.

We are only now beginning to understand the climatic impact of the remarkable events that are now occurring in subarctic waters. Researchers, however, have yet to agree upon a predictive model that links change in our northern seas to climate. This volume brings together the body of evidence needed to develop climate models that quantify the ocean exchanges through subarctic seas, measure their variability, and gauge their impact on climate.

The arctic region is predicted to experience the earliest and most pronounced global warming response to human-induced climatic change. This book synthesizes information on the physiological ecology of arctic plants, discusses how physiological processes influence ecosystem processes, and explores how climate warming will affect arctic plants, plant communities, and ecosystem processes. Key Features * Reviews the physiological ecology of arctic plants * Explores biotic controls over community and ecosystems processes * Provides physiological bases for predicting how the Arctic will respond to global climate change

This book assesses the construction of security in the context of climate change, with a focus on the Arctic region. It examines and discusses changes in the security premises of the Arctic states, from traditional security to environmental and human security. In particular, the book explores how climate change impacts security discourses and premises as well as theoretically discussing the possibility for another change, from circumpolar stability into peaceful change. Chapters cover topics such as the ethics of climate change in the arctic, China’s emerging power and influence on arctic climate security, the discursive transformation of the definition of security and the intersection between urban, climate and Arctic studies. The book concludes with the question of whether a paradigm shift in our understanding of traditional security is possible, and whether it is already occurring in the Arctic.

A wide range of contemporary challenges and threats, and their volatility, uncertainty, complexity and ambiguity make it necessary to develop a new, flexible and integrated holistic approach. The modern world requires NATO to build institutional partnerships with a range of actors. This applies not only to the other major international organizations, such as the United Nations and the European Union, but also to non-governmental organizations (NGOs) as well as the private sector, for example the energy and IT sectors. All these players must become partners in the attempt to cope with multi-dimensional security-related problems. Given the vast differences in their goals, mandates, methods and philosophy of action, building trusting and effective relationships between them will be an arduous process. Nevertheless, as the biggest political and military organization in the world, NATO cannot avoid contemporary challenges if it does not want to “go out of business”.