Report of the Seventeenth Session of the Intergovernmental Panel on Climate Change (IPCC)

Report of the Seventeenth Session of the Intergovernmental Panel on Climate Change (IPCC)

Date: April 2001
Creator: Intergovernmental Panel on Climate Change (IPCC)
Description: Different speakers addressed the Panel, and some highlighted the importance of sound data for monitoring and predicting the climate system and noted with concern the decline in observational networks. Others emphasized the value of the scientific information provided by the IPCC for the Convention process and highlighted the need to integrate scientific assessments in sustainable development consideration and to communicate with a wider audience.
Contributing Partner: UNT Libraries
IPCC Expert Meeting On Industrial Technology Development, Transfer And Diffusion

IPCC Expert Meeting On Industrial Technology Development, Transfer And Diffusion

Date: October 2004
Creator: Intergovernmental Panel on Climate Change
Description: This meeting summary report presents the major findings and discussion from the IPCC Expert Meeting on "Industrial Technology Development, Transfer and Diffusion."
Contributing Partner: UNT Libraries
Report of the Joint IPCC WG II & III Expert meeting on the integration of Adaptation, Mitigation and Sustainable Development into the 4th IPCC Assessment Report

Report of the Joint IPCC WG II & III Expert meeting on the integration of Adaptation, Mitigation and Sustainable Development into the 4th IPCC Assessment Report

Date: 2005
Creator: Intergovernmental Panel on Climate Change
Description: This report summarizes a meeting to develop the 4th IPCC Assessment Report. The meeting was attended by international experts in adaptation, mitigation and/or sustainable development.
Contributing Partner: UNT Libraries
IPCC Expert Meeting on Emission Scenarios

IPCC Expert Meeting on Emission Scenarios

Date: 2005
Creator: Intergovernmental Panel on Climate Change
Description: This report summarizes the Expert Meeting on Emission Scenarios to help inform the fourth Assessment Report of the IPCC.
Contributing Partner: UNT Libraries
Trends in Emissions of Ozone-Depleting Substances, Ozone Layer Recovery, and Implications for Ultraviolet Radiation Exposure

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

Date: November 2008
Creator: US Climate Change Science Program and the Subcommittee on Global Change Research.
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 evolved, the Protocol evolved through amendment and adjustment. Policy-relevant science has documented the rise, and now the beginning decline, of the atmospheric abundances of many ozone-depleting substances in response to actions taken by the nations of the world. Projections are for a return of ozone-depleting chemicals (compounds containing chlorine and bromine) to their "pre-ozone-depletion" (pre-1980) levels by the middle of this century for the midlatitudes; the polar regions are expected to follow suit within 20 years after that. Since the 1980s, global ozone sustained a depletion of about 5 percent in the midlatitudes of both the Northern Hemisphere and Southern Hemisphere, where most of the Earth's population resides; it is now showing signs of turning the corner towards increasing ozone. The large seasonal depletions in the polar regions are ...
Contributing Partner: UNT Libraries
Climate Projections Based on Emissions Scenarios for Long-Lived and Short-Lived Radiatively Active Gases and Aerosols

Climate Projections Based on Emissions Scenarios for Long-Lived and Short-Lived Radiatively Active Gases and Aerosols

Date: September 2008
Creator: U.S. Climate Change Science Program and the Subcommittee on Global Change Research
Description: This report focuses on the Climate Projections Based on Emissions Scenarios. The influence of greenhouse gases and particle pollution on our present and future climate has been widely examined. While both long-lived (e.g., carbon dioxide) and short-lived (e.g., soot) gases and particles affect the climate, other projections of future climate, such as the IPCC reports focus largely on the long-lived gases. This U.S. Climate Change Science Program Synthesis and Assessment Product provides a different emphasis. The authors examine the effect of long-lived greenhouse gases on the global climate based on updated emissions scenarios produced by another CCSP Synthesis and Assessment Product (SAP 2.1a). In these scenarios, atmospheric concentrations of the long-lived greenhouse gases leveled off, or stabilized, at predetermined levels by the end of the twenty-first century (unlike in the IPCC scenarios). However, the projected future temperature changes fall within the same range as those projected for the latest IPCC report. The authors confirm the robust future warming signature and other associated changes in the climate.
Contributing Partner: UNT Libraries
Atmospheric Aerosol Properties and Climate Impacts

Atmospheric Aerosol Properties and Climate Impacts

Date: January 2009
Creator: U.S. Climate Change Science Program and the Subcommittee on Global Change Research
Description: This report critically reviews current knowledge about global distributions and properties of atmospheric aerosols as they relate to aerosol impacts on climate. It assesses possible steps to substantially reduce uncertainties in aerosol radiative forcing estimates.
Contributing Partner: UNT Libraries
Climate Models: An Assessment of Strengths and Limitations

Climate Models: An Assessment of Strengths and Limitations

Date: July 2008
Creator: Climate Change Science Program (U.S.). Subcommittee on Global Change Research.
Description: This Synthesis and Assessment Product (SAP 3.1) focuses on the Climate models. Scientists extensively use mathematical models of Earth's climate, executed on the most powerful computers available, to examine hypotheses about past and present-day climates. Development of climate models is fully consistent with approaches being taken in many other fields of science dealing with very complex systems. These climate simulations provide a framework within which enhanced understanding of climate-relevant processes, along with improved observations, are merged into coherent projections of future climate change. This report describes the models and their ability to simulate current climate.
Contributing Partner: UNT Libraries
Thresholds of Climate Change in Ecosystems

Thresholds of Climate Change in Ecosystems

Date: January 2009
Creator: U.S. Climate Change Science Program and the Subcommittee on Global Change Research
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 propagate in a domino-like fashion that is potentially irreversible. This report reviews threshold changes in North American ecosystems that are potentially induced by climatic change and addresses the significant challenges these threshold crossings impose on resource and land managers. Sudden changes to ecosystems and the goods and services they provide are not well understood, but they are extremely important if natural resource managers are to succeed in developing adaptation strategies in a changing world. The report provides an overview of what is known about ecological thresholds and where they are likely to occur. It also identifies those areas where research is most needed to improve knowledge and understand the uncertainties regarding them. The report suggests a suite of potential actions that land and resource managers ...
Contributing Partner: UNT Libraries
Weather and Climate Extremes in a Changing Climate. Regions of Focus: North America, Hawaii, Caribbean, and U.S. Pacific Islands

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

Date: June 2008
Creator: U.S. Climate Change Science Program and the Subcommittee on Global Change Research.
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 decades most of North America has been experiencing more unusually hot days and nights, fewer unusually cold days and nights, and fewer frost days. Heavy downpours have become more frequent and intense. Droughts are becoming more severe in some regions, though there are no clear trends for North America as a whole. The power and frequency of Atlantic hurricanes have increased substantially in recent decades, though North American mainland land-falling hurricanes do not appear to have increased over the past century. Outside the tropics, storm tracks are shifting northward and the strongest storms are becoming even stronger. It is well established through formal attribution studies that the global warming of the past 50 years is due primarily to human-induced increases in heat-trapping gases. Such ...
Contributing Partner: UNT Libraries
FIRST PREV 1 2 3 4 5 NEXT LAST