Chapter 1 in the ipcc fourth assessment report ar4 le treut et al. Reflecting the diversity of the communities involved in this assessment and progress in science, several of the definitions used in the ipccs special report 2012 differ in breadth or focus from those used in the ar4 and other ipcc reports. A representative concentration pathway rcp is a greenhouse gas concentration not emissions trajectory adopted by the ipcc. Climate change unfccc, where climate change is defined as. Ipcc inducted to the earth hall of fame kyoto the earth hall of fame kyoto has named the intergovernmental panel on climate change ipcc as one of two honourable 11th inductees. Module 1 understanding climate variability and climate change. Glossary of climate change terms climate change us epa. Managing the risks of extreme events and disasters to advance climate change adaptation eea glossary.
The intergovernmental panel on climate change has projected that the. To learn about climate change, you first must know what climate is. Climate change commitment is defined as the future change to which the climate. Intergovernmental panel on climate change ipcc, geneva, switzerland, 6 pp. Its real and temperatures have been going up around. Ipcc synonyms, ipcc pronunciation, ipcc translation, english dictionary definition of ipcc. C since the mid19th century, with most change occurring since 1976. Topic 3 demonstrates the need and strategic considerations for both adaptation and globalscale mitigation to manage risks from climate change. Climate change commitment is indicative of aspects of inertia in the climate system because it captures the ongoing nature of some aspects of change. Intergovernmental panel on climate change ipcc the ipcc was established jointly by the united nations environment programme and the world meteorological organization in 1988. Change ipcc intergovernmental panel on climate change ipcc 2007 wrote, an increasing body of observations gives a collective picture of a warming world and other changes in the climate. The ipccs fifth assessment report offers the following key messages for africa.
The fifth assessment report of the intergovernmental panel. The synthesis report syr of the ipcc fifth assessment report ar5 provides an overview of the state of knowledge concerning the science of climate change, emphasizing new results since the publication of the ipcc fourth assessment report ar4 in 2007. United nations international strategy for disaster reduction unisdr, geneva, switzerland, 30 pp. The observational record the ipcc data distribution centre provides access to observed data covering the physical climate e. In both public and scienti c discourse the notions of climate and climate change are often loosely employed, and it remains unclear what exactly is understood by them. Nearterm adaptation and mitigation actions will differ across sectors and regions, reflecting development status, response. Climate change is the defining issue of our time and we are at a defining moment. There is climate change when there are di erent climates for two successive time periods, and there can be external climate change as well as internal climate change due to di erent initial values. The source working group is indicated on each definition.
Four pathways were used for climate modeling and research for the ipcc fifth assessment report ar5 in 2014. A change in the state of the climate that can be identified e. This synthesis report is based on the reports of the three working groups of the intergovernmental panel on climate change ipcc, including relevant special reports. Ipcc working group iii holds first virtual lead author meeting geneva, april 9 experts from the intergovernmental panel on climate change ipcc will work virtually on 14 to 19 april 2020 to advance their work on the working group iii contribution to the sixth assessment report. This page gathers a set of key references glossaries with the specialized terminology on climate change. Climate variability and climate change what is the difference. The intergovernmental panel on climate change ipcc is an intergovernmental body of the united nations, dedicated to providing the world with an objective, scientific view of climate change, its natural, political and economic impacts and risks, and possible response options. The intergovernmental panel on climate change ipcc was set up by the world meteorological organization wmo and united nations environment to provide an. Nations intergovernmental panel on climate change ipcc estimates that the global average land and sea surface temperature has increased by 0. Intergovernmental panel on climate change ipcc 2007 and other sources, as referenced.
The intergovernmental panel on climate change ipcc is an intergovernmental body of the. The working group on economics prefers the fccc definition. To learn about climate change, you must first know what climate is. Climate change refers to changes in the earths climate, especially the gradual rise in. Observations show that warming of the climate is unequivocal. Definitions of climate change climate change in ipcc usage refers to a change in the state of the climate that can be identified. Glossary intergovernmental panel on climate change. The term used to describe the flow of carbon in various forms, e. Pdf is a function that indicates the relative chances of occurrence of different. Summary for policymakers intergovernmental panel on climate. Meaning, pronunciation, translations and examples log in dictionary.
An ipcc special report on the impacts of global warming of 1. Climate change vulnerability and risk key concepts. Ipcc pdf download intergovernmental panel on climate changethe intergovernmental panel on climate change is a scientific government body under the united nations set up at the request of the member governments, dedicated to providing the world with an objective, scientific view of climate change and its political and economic impacts on. Fifth assessment report mitigation of climate change. New emission scenarios for climate change, the four representative concentration pathways rcps, were developed for, but independently of, the fifth ipcc assessment. The intergovernmental panel on climate change ipcc is active socially choose your network. The summer of 2009 was one of michigans coldest summers on record. This paper introduces the 2006 ipcc guidelines for national greenhouse gas inventories 2006 guidelines. Its working group on science prefers and indeed developed the broad ipcc definition. Climate change in ipcc usage refers to a change in the state of the climate that can be identified e. The effect of climate change on water resources and. The intergovernmental panel on climate change ipcc projects that the average surface temperature of the earth is likely to increase by 3. United nations framework convention on climate change.
In the ipcc special report on emission scenarios nakicenovic and swart, 2000 a new set of emission scenarios, the socalled sres scenarios, were published, some of which were used, among others, as a basis for the climate projections presented in chapters 9. The ipcc assesses research on climate change and synthesises. Good practice guidance for land use, landuse change and. Climate change mitigation refers to efforts to reduce or prevent emission of greenhouse gases. Impacts, adaptation and vulnerability the intergovernmental panel on climate change ipcc was set up jointly by the world meteorological organization and the united nations environment programme to provide an authoritative international statement of scientific understanding of climate change.
The intergovernmental panel on climate change ipcc is an intergovernmental body of the united nations that is dedicated to providing the world with objective, scientific information relevant to understanding the scientific basis of the risk of humaninduced climate change, its natural, political, and economic impacts and risks, and possible response options. That is the reason why, for example, some terms included in consecutive intergovernmental panel on climate change ipcc assessment reports differ in their definitions in the respective glossaries. The honour is given in the name of kyoto, the birthplace of the kyoto protocol. It is hoped this will give a better understanding of greenhouse gas inventories to a wider audience.
From shifting weather patterns that threaten food production, to rising sea levels that increase the risk of. South asias climate is already changing and the impacts are already being felt the fifth assessment report of the intergovernmental panel on climate change ipcc finds, beyond reasonable doubt, that the earths climate is warming. Global change research program published a report stating. In reading this chapter, it needs to be borne in mind. Paper of the intergovernmental panel on climate change, ipcc secretariat. Explain the methodology used to produce the pdf, any. The uns intergovernmental panel on climate change ipcc for short is a highly influential organization that has heavily shaped public and scientific opinion on climate change. Ipcc pdf download intergovernmental panel on climate change the intergovernmental panel on climate change is a scientific government body under the united nations set up at the request of the member governments, dedicated to providing the world with an objective, scientific view of climate change and its political and economic impacts on. It provides an integrated view of climate change as the final part of the ipccs fifth assessment report ar5. Accumulating evidence suggests that the global climate i.
Climate in a narrow sense is usually defined as the average weather. The definitions shown here are from the ipcc fifth assessment report ar5 working group glossaries. Glossary of acronyms and specialised terms on the ipccddc website. Dec 06, 2011 the intergovernmental panel on climate change ipcc is a united nations body, founded in 1988, which evaluates climate change science. Climate change may be due to natural internal processes or external forcings. Dec 03, 2019 the uns intergovernmental panel on climate change ipcc for short is a highly influential organization that has heavily shaped public and scientific opinion on climate change. Engage with the ipcc there are many ways to be involved and participate in the ipcc world. Mitigation can mean using new technologies and renewable energies, making older equipment more energy efficient, or changing. Climate change definition and meaning collins english. The intergovernmental panel on climate change ipcc is the leading international body for the assessment of climate change. The purpose of the ipcc is to assess information in the scientific and technical literature related to all significant components of the issue of climate change. Climate change is the catchall term for the shift in worldwide weather phenomena associated with an increase in global average temperatures. Glossary ipcc intergovernmental panel on climate change. In their most recent assessment report published in 202014 they concluded that most of the climate change since at least the 1950s was humancaused.
Africas climate is already changing and the impacts are already being felt the fifth assessment report of the intergovernmental panel on climate change ipcc finds, beyond reasonable doubt. Special report of working groups i and ii of the intergovernmental panel on climate change 2012. Glossary of terms and definitions on climate change and adaptation. Assessments of climate change by the ipcc, drawing on the work of hundreds of scientists from all over the world, enable policymakers at all levels of government to take sound, evidencebased decisions. The bias against adaptation is reflected in the schizophrenic attitude that the ipcc has taken toward the definition of climate change. The intergovernmental panel on climate change ipcc has adopted the baseline reference period 18501900 as an approximation of preindustrial global mean surface temperature. Potential impacts are all impacts that may occur given a projected change in climate,withoutconsideringadaptation. Chapter 20 global climate change world health organization. Ipcc 2006, summarises the basic approach for inventory development, and provides guidance on their use. Task force on national greenhouse gas inventories tfi was established by the ipcc to oversee the ipcc national greenhouse gas inventories programme ipccnggip. Ipcc pdf download intergovernmental panel on climate change. Building on these insights, topic 4 presents nearterm response options that could help achieve such strategic goals.
The synthesis report syr of the ipcc fifth assessment report ar5 provides an overview of the state of knowledge concerning the science of climate change, emphasizing new results since the publication of the ipcc fourth assessment report in 2007 ar4. Ipcc introduces new climate change definition the global. A summary of perturbations to the forcing of the climate system from changes in solar radiation, ghgs, surface albedo and aerosols is pre sented in box. As seen in figure 7 warming is not predicted to be evenly distributed around the globe. Intergovernmental panel on climate change wikipedia. Present the pdf graphically andor provide the 5th and 95th percentiles of the distribution. This report on good practice guidance for land use, landuse change and forestry gpglulucf is the response to the invitation by the united nations framework convention on climate change unfccc1 to the intergovernmental panel on climate change ipcc2 to develop good practice guidance for land use, landuse change and forestry lulucf. In this report, the reference unit for the global carbon cycle is gtco. Introduction intergovernmental panel on climate change. Likely means greater than 66% probability of being correct, based on expert judgement. The ipcc has previously developed the revised 1996 ipcc guidelines for national greenhouse gas inventories1 1996 ipcc guidelines, together with the good practice guidance and uncertainty management in national greenhouse gas inventories2 gpg2000 and the good practice guidance for land use, landuse change and forestry3 gpglulucf. A collection of model simulations characterising a climate prediction or projection. Debate has stimulated a wide variety of climate change research.
The warming evident in the instrumental temperature record is consistent with a wide range of observations, documented by many independent scientific groups. Tackling this phenomenon is of utmost importance given the pivotal role that climate plays in the formation of natural ecosystems and the human economies and civilizations on which they are based. Climate variability and climate change, what is the difference. The ipcc data distribution centre provides access to observed data covering the physical climate e. Mathematical models provide one important means to answer the what if. The buenos aires programme of work adopted at cop 10 emphasizes further implementation of specific activities that would enhance countries understanding of climate change impacts, their specific vulnerabilities, and ability to cope with and adapt to climate change. Climate change in ipcc usage refers to a change in. The royal society a guide to facts and fictions about climate change pdf. As climate science and the earths climate have continued to evolve over recent decades, increasing evidence of anthropogenic in.
Over the next decades, it is predicted that billions of people, particularly those in developing countries, face shortages of water and food and greater risks to health and life as a result of climate change concerted global. How the ipcc created a scientific consensus on climate. The complexity of adaptation actions across scales and contexts means that monitoring. It was established by the united nations environment programme unep and the world meteorological organization wmo in 1988 to provide the world with a clear scientific view on the current state of knowledge in climate change and its potential environmental and. In globalscale assessments, basins are defined as being water. Fifth assessment report mitigation of climate change assesses the options for mitigating climate change and their underlying technological, economic and institutional requirements. The climate change agenda has risen substantially in global and national importance and the topic has thus been given a dedicated chapter in this 2. Vulnerabilityisafunctionofthecharacter,magnitudeandrateofclimatechangeand variationtowhichasystemis exposed,its sensitivity,andits adaptivecapacity. Managing the risks of extreme events and disasters to advance climate change. What people might do to reduce harm of climate change, or make themselves best able to take advantage of climate.
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