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Thresholds of Climate Change in Ecosystems

Description: This Report (SAP 4.2) focuses on the thresholds of Climate Change in Ecosystems. As defined in this Synthesis and Assessment Report, 'an ecological threshold is the point at which there is an abrupt change in an ecosystem quality, property, or phenomenon, or where small changes in one or more external conditions produce large and persistent responses in an ecosystem'.Ecological thresholds occur when external factors, positive feedbacks, or nonlinear instabilities in a system cause changes to pr… more
Date: January 2009
Creator: U.S. Climate Change Science Program and the Subcommittee on Global Change Research
Partner: UNT Libraries
open access

Trends in Emissions of Ozone-Depleting Substances, Ozone Layer Recovery, and Implications for Ultraviolet Radiation Exposure

Description: This Synthesis and Assessment Product (SAP 2.4) focuses on the Climate models. Depletion of the stratospheric ozone layer by human-produced ozone-depleting substances has been recognized as a global environmental issue for more than three decades, and the international effort to address the issue via the United Nations Montreal Protocol marked its 20-year anniversary in 2007. Scientific understanding underpinned the Protocol at its inception and ever since. As scientific knowledge advanced and … more
Date: November 2008
Creator: US Climate Change Science Program and the Subcommittee on Global Change Research.
Partner: UNT Libraries
open access

Uses and Limitations of Observations, Data, Forecasts, and Other Projections in Decision Support for Selected Sectors and Regions

Description: This Synthesis and Assessment Product (SAP), Uses and Limitations of Observations, Data, Forecasts, and Other Projections in Decision Support for Selected Sectors and Regions. This is part of a series of 21 SAPs produced by the CCSP aimed at providing current assessments of climate change science to inform public debate, policy, and operational decisions. This SAP focuses on the use of climate observations, data, forecasts, and other projections in decision support.
Date: August 2008
Creator: U.S. Climate Change Science Program and the Subcommittee on Global Change Research
Partner: UNT Libraries
open access

Weather and Climate Extremes in a Changing Climate : Frequently Asked Questions

Description: This brochure corresponds with the Weather and Climate Extremes in a Changing Climate Synthesis and Assessment Report by the U.S. Climate Change Science Program. It highlights observed changes and likely projections in North American weather, and how changes in North American weather are likely to have an adverse economic effect.
Date: 2008
Creator: Climate Change Science Program (U.S.)
Partner: UNT Libraries
open access

Weather and Climate Extremes in a Changing Climate. Regions of Focus: North America, Hawaii, Caribbean, and U.S. Pacific Islands

Description: This document is part of the Synthesis and Assessment Products described in the U.S. Climate Change Science Program (CCSP) Strategic Plan. Changes in extreme weather and climate events have significant impacts and are among the most serious challenges to society in coping with a changing climate. This Synthesis and Assessment Product (SAP 3.3) focuses on weather and climate extremes in a changing climate. Many extremes and their associated impacts are now changing. For example, in recent decade… more
Date: June 2008
Creator: U.S. Climate Change Science Program and the Subcommittee on Global Change Research.
Partner: UNT Libraries
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