Share

Polar Icebreakers in a Changing World

2007-03-14 Transportation
Download Polar Icebreakers in a Changing World PDF Online Free

Author :
Release : 2007-03-14
Genre : Transportation
Kind : eBook
Book Rating : 215/5 ( reviews)

GET EBOOK


Book Synopsis Polar Icebreakers in a Changing World by : National Research Council

Download or read book Polar Icebreakers in a Changing World written by National Research Council. This book was released on 2007-03-14. Available in PDF, EPUB and Kindle. Book excerpt: The United States has enduring national and strategic interests in the polar regions, including citizens living above the Arctic circle and three year-round scientific stations in the Antarctic. Polar icebreaking ships are needed to access both regions. Over the past several decades, the U.S. government has supported a fleet of four icebreakersâ€"three multi-mission U.S. Coast Guard ships (the POLAR SEA, POLAR STAR, and HEALY) and the National Science Foundation's PALMER, which is dedicated solely to scientific research. Today, the POLAR STAR and the POLAR SEA are at the end of their service lives, and a lack of funds and no plans for an extension of the program has put U.S. icebreaking capability at risk. This report concludes that the United States should continue to support its interests in the Arctic and Antarctic for multiple missions, including maintaining leadership in polar science. The report recommends that the United States immediately program, budget, design, and construct two new polar icebreakers to be operated by the U.S. Coast Guard. The POLAR SEA should remain mission capable and the POLAR STAR should remain available for reactivation until the new polar icebreakers enter service. The U.S. Coast Guard should be provided sufficient operations and maintenance budget to support an increased, regular, and influential presence in the Arctic, with support from other agencies. The report also calls for a Presidential Decision Directive to clearly align agency responsibilities and budgetary authorities.

Frontiers in Understanding Climate Change and Polar Ecosystems

2011-06-02 Science
Download Frontiers in Understanding Climate Change and Polar Ecosystems PDF Online Free

Author :
Release : 2011-06-02
Genre : Science
Kind : eBook
Book Rating : 879/5 ( reviews)

GET EBOOK


Book Synopsis Frontiers in Understanding Climate Change and Polar Ecosystems by : National Research Council

Download or read book Frontiers in Understanding Climate Change and Polar Ecosystems written by National Research Council. This book was released on 2011-06-02. Available in PDF, EPUB and Kindle. Book excerpt: The polar regions are experiencing rapid changes in climate. These changes are causing observable ecological impacts of various types and degrees of severity at all ecosystem levels, including society. Even larger changes and more significant impacts are anticipated. As species respond to changing environments over time, their interactions with the physical world and other organisms can also change. This chain of interactions can trigger cascades of impacts throughout entire ecosystems. Evaluating the interrelated physical, chemical, biological, and societal components of polar ecosystems is essential to understanding their vulnerability and resilience to climate forcing. The Polar Research Board (PRB) organized a workshop to address these issues. Experts gathered from a variety of disciplines with knowledge of both the Arctic and Antarctic regions. Participants were challenged to consider what is currently known about climate change and polar ecosystems and to identify the next big questions in the field. A set of interdisciplinary "frontier questions" emerged from the workshop discussions as important topics to be addressed in the coming decades. To begin to address these questions, workshop participants discussed the need for holistic, interdisciplinary systems approach to understanding polar ecosystem responses to climate change. As an outcome of the workshop, participants brainstormed methods and technologies that are crucial to advance the understanding of polar ecosystems and to promote the next generation of polar research. These include new and emerging technologies, sustained long-term observations, data synthesis and management, and data dissemination and outreach.

Climate Change in the Polar Regions

2011-05-12 Nature
Download Climate Change in the Polar Regions PDF Online Free

Author :
Release : 2011-05-12
Genre : Nature
Kind : eBook
Book Rating : 10X/5 ( reviews)

GET EBOOK


Book Synopsis Climate Change in the Polar Regions by : John Turner

Download or read book Climate Change in the Polar Regions written by John Turner. This book was released on 2011-05-12. Available in PDF, EPUB and Kindle. Book excerpt: Comprehensive, up-to-date account of polar climate change over the last one million years for researchers and advanced students in polar science.

Polar Environments and Global Change

2018-08-09 Science
Download Polar Environments and Global Change PDF Online Free

Author :
Release : 2018-08-09
Genre : Science
Kind : eBook
Book Rating : 431/5 ( reviews)

GET EBOOK


Book Synopsis Polar Environments and Global Change by : Roger G. Barry

Download or read book Polar Environments and Global Change written by Roger G. Barry. This book was released on 2018-08-09. Available in PDF, EPUB and Kindle. Book excerpt: The polar regions are the 'canary in the coal mine' of climate change: they are likely to be hit the hardest and fastest. This comprehensive textbook provides an accessible introduction to the scientific study of polar environments against a backdrop of climate change and the wider global environment. The book assembles diverse information on polar environmental characteristics in terrestrial and oceanic domains, and describes the ongoing changes in climate, the oceans, and components of the cryosphere. Recent significant changes in the polar region caused by global warming are explored: shrinking Arctic sea ice, thawing permafrost, accelerating loss of mass from glaciers and ice sheets, and rising ocean temperatures. These rapidly changing conditions are discussed in the context of the paleoclimatic history of the polar regions from the Eocene to the Anthropocene. Future projections for these regions during the twenty-first century are discussed. The text is illustrated with many color figures and tables, and includes further reading lists, review questions for each chapter, and a glossary.

Polar Science and Global Change

2010 Arctic regions
Download Polar Science and Global Change PDF Online Free

Author :
Release : 2010
Genre : Arctic regions
Kind : eBook
Book Rating : /5 ( reviews)

GET EBOOK


Book Synopsis Polar Science and Global Change by :

Download or read book Polar Science and Global Change written by . This book was released on 2010. Available in PDF, EPUB and Kindle. Book excerpt:

You may also like...