This report presents a study of policies and measures that could dramatically reduce US greenhouse gas emissions over the next two decades. It examines a broad set of national policies to increase energy efficiency, accelerate the adoption of renewable energy technologies, and shift energy use to less carbon-intensive fuels. The policies address major areas of energy use in residential and commercial buildings, industrial facilities, transportation, and power generation.

This report discusses the impacts of deforestation and reforestation on carbon emissions and carbon storage, and how change in land cover will affect future trends in climate change and carbon levels.

Gases typically measured in parts per million (ppm), parts per billion (ppb) or parts per trillion (ppt) by volume are presented separately to facilitate comparison of numbers.

This document is the final version of the "Data Management for Global Change Research Policy Statements." The overall purpose of these policy statements is to facilitate full open access to quality data for global change research. They were prepared in consonance with the goal of the U.S. Global Change Research Program and represent the U.S. Government's position on the access to global change research data.

This study compiles and updates the findings of 16 comprehensive state climate action plans and extrapolates the results to the nation. The study then takes those results and using a widely accepted econometric model projects the national impact of these policies on employment, incomes, gross domestic product (GDP) and consumer energy prices. Finally, using the bottom-up data developed by the states and aggregated here, the study models the national impact of major features of the Kerry-Lieberman climate bill under consideration in Congress in 2010. These state action plans and supporting assessments were proposed by over 1,500 stakeholders and technical work group experts appointed by 16 governors and state legislatures to address climate, energy and economic needs through comprehensive, fact-based, consensus-driven, climate action planning processes conducted over the past five years with facilitative and technical assistance by the Center for Climate Strategies. Findings show potential national improvements from implementation of a top set of 23 major sector-based policies and measures drawn from state plans.

This document describes a research strategy for developing improved knowledge of climate variability and change and the potential impacts on the environment and on human lives. It also provides for the development of resources and tools that will empower policy-makers with the knowledge necessary for making decisions.

The report describes activities and plans of the Climate Change Science Program (CCSP), highlighting recent progress in each of the program's research and observational elements. The document also describes how observational and predictive capabilities are being improved and used to create tools to support decision making at local, regional, and national scales to cope with environmental variability and change.

This edition of Our Changing Planet includes a review of the Strategic Plan for the U.S. Climate Change Science Program (CCSP) from 2003 and outlines how the CCSP is moving forward to implement the Strategic Plan during FY 2004 and FY 2005. As a part of this implementation, the report announces the production of 21 scientific syntheses and assessments on a range of topics to support informed discussion of climate variability and associated issues by decision makers and the public.

The Strategic Plan for the Climate Change Science Program was released in July 2003. The document is the first comprehensive update of a national plan for climate and global change research since the original U.S. Global Change Research Program strategy was issued at the inception of the program in 1989.

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.

This strategic plan has been prepared by the 13 federal agencies participating in the CCSP, with coordination by the CCSP staff under the leadership of Dr. Richard H. Moss. This strategic plan responds to the President's direction that climate change research activities be accelerated to provide the best possible scientific information to support public discussion and decision-making on climate-related issues.The plan also responds to Section 104 of the Global Change Research Act of 1990, which mandates the development and periodic updating of a long-term national global change research plan coordinated through the National Science and Technology Council.This is the first comprehensive update of a strategic plan for U.S. global change and climate change research since the original plan for the U.S. Global Change Research Program was adopted at the inception of the program in 1989.

The vision document provides an overview of the Climate Change Science Program (CCSP) long-term strategic plan to enhance scientific understanding of global climate change.This document is a companion to the comprehensive Strategic Plan for the Climate Change Science Program.

In accordance with the directives outlined in Executive Order #14-03, this Third Biennial Report of the Climate Neutral Working Group (CNWG) provides an update regarding: The state of the science of responding to climate change; Efforts to meet the goals of the Executive Order; Future planned steps and their anticipated impacts, expected challenges, and opportunities; Opportunities to initiate a statewide voluntary greenhouse gas emissions registry; The feasibility of a carbon emissions cap and trading program. Also summarized within this report are a number of related ongoing efforts within state government that will facilitate an expanded and coordinated campaign to reduce greenhouse gas (GHG) emissions. Recommended actions for continued GHG emissions reductions are presented in this report to be considered for implementation during 2009 – 2010 by Vermont State Government.

The report concludes with a global cumulative GHG emission cap for the period from 2010 till 2050. It outlines mid-term and long-term cumulative emission allowances for key countries under the three equity approaches and trajectories for these countries to keep global warming below 2 degrees Celsius. The objective of the report is to initiate a constructive debate among and foster long-term commitments of the parties while moving towards a fair, ambitious and binding Copenhagen agreement.

This paper addresses adaptation measures that reduce vulnerability to climate change as critical, especially in many countries where the risks are here and now. It is intended provide policymakers with a starting point, including background information and questions for further reflection.

In this USGRP Seminar, Dr. Epstein discusses the implications of climate change and the emergence of diseases and viruses such as the hantavirus, dengue fever, ebola, cholera, malaria, and eastern equine encephalitis. These signals of global change can be costly to health, commerce, tourism, and transportation.

This paper considers the potential impacts of climate change on protected areas (PAs) and actions that can be taken to mitigate them. Recent research suggests that the types of environmental changes predicted in climatic models are now taking place. Studies of many animals and plants that show significant alterations in range or behaviour find that the most consistent explanation for these is climate change. These impacts may necessitate a fundamental rethinking in the approach to protection. Protected areas are rooted in the concept of permanence: protection works best as a conservation tool if the area remains protected for the foreseeable future. But under climate change, species for which a particular protected area was established may no longer survive there. Some protected areas - for instance in coastal, arctic and mountain regions - may disappear altogether in their current form.

Negotiations on the Kyoto Protocol to the United Nations Framework Convention on Climate Change (UNFCCC) was completed on December 11, 1997, committing the industrialized nations to specified, legally binding reductions in emissions of six “greenhouse gases.” The Protocol entered into force on February 16, 2005, and its emissions reduction requirements are binding on the 35 industrialized countries that have ratified it; the United States disengaged from the Protocol in 2001 and has not ratified it.

The "Pavley" bill requires the registry, in consultation with the State Air Resources Board, to adopt procedures and protocols for the reporting and certification of reductions in greenhouse gas emissions from mobile sources for use by the state board in granting the emission reduction credits. This bill requires the state board to develop and adopt, by January 1, 2005, regulations that achieve the maximum feasible reduction of greenhouse gases emitted by passenger vehicles and light-duty trucks.

This paper is one of a series produced for the project that provides in-depth information on the four thematic building blocks of the Bali Action Plan—mitigation, adaptation, technology and finance—as well as on land-use, land-use change and forestry. The project materials also include executive summaries for policymakers, background briefing documents and workshop presentations. These materials will be used for national awareness raising workshops in the participating countries.

This workshop report is a contribution by the IPCC Working Group I for the preparation of the IPCC 4th Assessment Report. The workshop evaluated a range of climate model results in order to improve understanding of climate sensitivity estimates and objectively determine criteria for evaluating results from different climate models.

.This report describes the evolution of China’s domestic climate-change policy over the period 1988-2011, using the Advocacy Coalition Framework (ACF) to explore the policy change. Policy development has been gradual, with the most notable change occurring in 2007, when the National Climate Change Programme elevated climate change to a national policy issue.The ACF points to socioeconomic development and the Climate Change Advocacy Coalition’s policy-oriented learning as explanations for the development of climate-change policy in China.

This document is an evaluation of the Japanese domestic emissions trading scheme to reduce greenhouse gas emissions.

Korea’s greenhouse gas emissions almost doubled between 1990 and 2005, the highest growth rate in the OECD area. Korea recently set a target of reducing emissions by 30% by 2020 relative to a "business as usual" baseline, implying a 4% cut from the 2005 level. Achieving this objective in a cost-effective manner requires moving from a strategy based on voluntary commitments by firms to market-based instruments. The priority is to establish a comprehensive cap-and-trade scheme, supplemented, if necessary, by carbon taxes in areas not covered by trading. Achieving a significant cut in emissions requires a shift from energy-intensive industries to low-carbon ones. Korea is strongly committed to promoting green growth through its Five-Year Plan, which envisages spending 2% of GDP per year through 2013. One challenge is to ensure that these expenditures are efficiently targeted so as to develop green technologies, while avoiding the risks inherent in industrial policy.