Greenhouse Gas Protocol
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Greenhouse Gas Protocol
Carbon accounting (or greenhouse gas accounting) is a framework of methods to measure and track how much greenhouse gas (GHG) an organization emits. It can also be used to track projects or actions to reduce emissions in sectors such as forestry or renewable energy. Corporations, cities and other groups use these techniques to help limit climate change. Organizations will often set an emissions baseline, create targets for reducing emissions, and track progress towards them. The accounting methods enable them to do this in a more consistent and transparent manner. The main reasons for GHG accounting are to address social responsibility concerns or meet legal requirements. Public rankings of companies, financial due diligence and potential cost savings are other reasons. GHG accounting methods help investors better understand the climate risks of companies they invest in. They also help with net zero emission goals of corporations or communities. Many governments around the wo ...
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Carbon Accounting Scopes
Carbon () is a chemical element; it has symbol C and atomic number 6. It is nonmetallic and tetravalent—meaning that its atoms are able to form up to four covalent bonds due to its valence shell exhibiting 4 electrons. It belongs to group 14 of the periodic table. Carbon makes up about 0.025 percent of Earth's crust. Three isotopes occur naturally, C and C being stable, while C is a radionuclide, decaying with a half-life of 5,700 years. Carbon is one of the few elements known since antiquity. Carbon is the 15th most abundant element in the Earth's crust, and the fourth most abundant element in the universe by mass after hydrogen, helium, and oxygen. Carbon's abundance, its unique diversity of organic compounds, and its unusual ability to form polymers at the temperatures commonly encountered on Earth, enables this element to serve as a common element of all known life. It is the second most abundant element in the human body by mass (about 18.5%) after oxygen. ...
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Kyoto Protocol
The was an international treaty which extended the 1992 United Nations Framework Convention on Climate Change (UNFCCC) that commits state parties to reduce greenhouse gas emissions, based on the scientific consensus that global warming is occurring and that human-made CO2 emissions are driving it. The Kyoto Protocol was adopted in Kyoto, Japan, on 11 December 1997 and entered into force on 16 February 2005. There were 192 parties (Canada withdrew from the protocol, effective December 2012) to the Protocol in 2020. The Kyoto Protocol implemented the objective of the UNFCCC to reduce the onset of global warming by reducing greenhouse gas concentrations in the atmosphere to "a level that would prevent dangerous anthropogenic interference with the climate system" (Article 2). The Kyoto Protocol applied to the seven greenhouse gases listed in Annex A: carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), hydrofluorocarbons (HFCs), perfluorocarbons (PFCs), sulfur hexaflu ...
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Science Based Targets Initiative
The Science Based Targets initiative (SBTi) is a collaboration between its founding partners, CDP, the United Nations Global Compact, World Resources Institute (WRI) and the World Wide Fund for Nature (WWF), and We Mean Business Coalition. As of 2025, over 10,000 companies have set or committed to set science-based climate targets validated by SBTi. Organization The Science Based Targets initiative was established in 2015 Real SustainabilityScience Based Targets for Financial Institutions accessed 2 December 2021 to help companies to set emission reduction targets in line with climate sciences and Paris Agreement goals. It is funded by IKEA Foundation, Amazon, Bezos Earth Fund, We Mean Business coalition, Rockefeller Brothers Fund and UPS Foundation. In October 2021, SBTi developed and launched the world's first net zero standard, providing the framework and tools for companies to set science-based net zero targets and limit global temperature rise above pre-industrial leve ...
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Carbon Disclosure Project
The CDP (formerly the Carbon Disclosure Project) is an international non-profit organisation based in the United Kingdom, Japan, India, China, Germany, Brazil and the United States that helps companies, cities, states, regions and public authorities disclose their environmental impact. It aims to make environmental reporting and risk management a business norm, driving disclosure, insight, and action towards a sustainable economy. In 2022, nearly 18,700 organizations disclosed their environmental information through CDP. Background CDP piggybacked on GRI's concept of environmental disclosure in 2002, focusing on individual companies rather than on nations. At the time CDP had just 35 investors signing its request for climate information and 245 companies responding. According to the organization, as of 2022, companies worth half of global market capitalization disclose through CDP. Mechanism CDP works with corporations, cities, states, and regions to help develop carbon e ...
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Value Chain
A value chain is a progression of activities that a business or firm performs in order to deliver goods and services of Value (economics), value to an end customer. The concept comes from the field of business management and was first described by Michael Porter in his 1985 best-seller, ''Competitive Advantage: Creating and Sustaining Superior Performance''. According to the OECD Secretary-General , the emergence of global value chains (GVCs) in the late 1990s provided a catalyst for accelerated change in the landscape of international investment and trade, with major, far-reaching consequences on governments as well as enterprises . Role of the business unit According to Porter, the appropriate level for constructing a value chain is the business unit within a business,Michael E. Porter (1985) Competitive advantage: creating and sustaining superior performance. The Free Press not a division (business), business division or the company as a whole. Porter is concerned that analy ...
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Greenhouse Gas Protocol
Carbon accounting (or greenhouse gas accounting) is a framework of methods to measure and track how much greenhouse gas (GHG) an organization emits. It can also be used to track projects or actions to reduce emissions in sectors such as forestry or renewable energy. Corporations, cities and other groups use these techniques to help limit climate change. Organizations will often set an emissions baseline, create targets for reducing emissions, and track progress towards them. The accounting methods enable them to do this in a more consistent and transparent manner. The main reasons for GHG accounting are to address social responsibility concerns or meet legal requirements. Public rankings of companies, financial due diligence and potential cost savings are other reasons. GHG accounting methods help investors better understand the climate risks of companies they invest in. They also help with net zero emission goals of corporations or communities. Many governments around the wo ...
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World Business Council For Sustainable Development
The World Business Council for Sustainable Development (WBCSD) is a CEO-led organization of over 225 international companies. The council is also connected to 60 national and regional business councils and partner organizations. Its origins date back to the Rio de Janeiro Earth Summit of 1992, when Stephan Schmidheiny, a Swiss business entrepreneur, was appointed chief adviser for business and industry to the secretary general of the United Nations Conference on Environment and Development (UNCED). He created a forum called "Business Council for Sustainable Development", which went on to become ''Changing Course'', a book that coined the concept of eco-efficiency. The WBCSD was created in 1995 as a merger of the Business Council for Sustainable Development and the World Industry Council for the Environment and is based at the Maison de la paix in Geneva, Switzerland, with offices in New York and New Delhi. Operations The council works on a variety of issues related to susta ...
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World Resources Institute
The World Resources Institute (WRI) is a global research non-profit organization established in 1982 with funding from the MacArthur Foundation under the leadership of James Gustave Speth. Subsequent presidents include Jonathan Lash (1993–2011), Andrew D. Steer (2012–2021) and current president Ani Dasgupta (2021–present). WRI studies sustainable practices for business, economics, finance and governance, with the purpose of better supporting human society in six areas: food, forests, water, energy, cities, and climate. The institute's flagship report series is the ''World Resources Report'', each of which deals with a different topic. WRI encourages initiatives for monitoring, data analysis, and risk assessment, including global and open source projects. WRI has maintained a 4 out of 4 stars rating from Charity Navigator since 1 October 2008. Organization The mission of the World Resources Institute (WRI) is to “move society to provide for the needs and aspirat ...
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Fluorocarbon
Fluorocarbons are chemical compounds with carbon-fluorine bonds. Compounds that contain many C-F bonds often have distinctive properties, e.g., enhanced stability, volatility, and hydrophobicity. Several fluorocarbons and their derivatives are commercial polymers, refrigerants, drugs, and anesthetics. Nomenclature Perfluorocarbons or PFCs, are organofluorine compounds with the formula CxFy, meaning they contain only carbon and fluorine. The terminology is not strictly followed and many fluorine-containing organic compounds are also called fluorocarbons. Compounds with the prefix perfluoro- are hydrocarbons, including those with heteroatoms, wherein all C-H bonds have been replaced by C-F bonds. Fluorocarbons includes perfluoroalkanes, fluoroalkenes, fluoroalkynes, and perfluoroaromatic compounds. Perfluoroalkanes Chemical properties Perfluoroalkanes are very stable because of the strength of the carbon–fluorine bond, one of the strongest in organic chemistry. Its st ...
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Hydrofluorocarbon
Hydrofluorocarbons (HFCs) are synthetic organic compounds that contain fluorine and hydrogen atoms, and are the most common type of organofluorine compounds. Most are gases at room temperature and pressure. They are frequently used in air conditioning and as refrigerants; R-134a (1,1,1,2-tetrafluoroethane) is one of the most commonly used HFC refrigerants. In order to aid the recovery of the stratospheric ozone layer, HFCs were adopted to replace the more potent chlorofluorocarbons (CFCs) such as R-12, which were phased out from use by the Montreal Protocol, and hydrochlorofluorocarbons (HCFCs) such as R-21 which are presently being phased out. HFCs are also used in insulating foams, aerosol propellants, as solvents and for fire protection. HFCs may not harm the ozone layer as much as the compounds they replace, but they still contribute to global warming – with some like trifluoromethane (CHF3 or R-23) having 11,700 times the warming potential of carbon dioxide. HFC atmo ...
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Nitrogen Trifluoride
Nitrogen trifluoride is the inorganic compound with the formula (). It is a colorless, non-flammable, toxic gas with a slightly musty odor. In contrast with ammonia, it is nonbasic. It finds increasing use within the manufacturing of flat-panel displays, photovoltaics, LEDs and other microelectronics. is a greenhouse gas, with a global warming potential (GWP) 17,200 times greater than that of when compared over a 100-year period. Synthesis and reactivity Nitrogen trifluoride can be prepared from the elements in the presence of an electric discharge. In 1903, Otto Ruff prepared nitrogen trifluoride by the electrolysis of a molten mixture of ammonium fluoride and hydrogen fluoride. It is far less reactive than the other nitrogen trihalides nitrogen trichloride, nitrogen tribromide, and nitrogen triiodide, all of which are explosive. Alone among the nitrogen trihalides it has a negative enthalpy of formation. It is prepared in modern times both by direct reaction of a ...
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Sulfur Hexafluoride
Sulfur hexafluoride or sulphur hexafluoride ( British spelling) is an inorganic compound with the formula SF6. It is a colorless, odorless, non-flammable, and non-toxic gas. has an octahedral geometry, consisting of six fluorine atoms attached to a central sulfur atom. It is a hypervalent molecule. Typical for a nonpolar gas, is poorly soluble in water but quite soluble in nonpolar organic solvents. It has a density of 6.12 g/L at sea level conditions, considerably higher than the density of air (1.225 g/L). It is generally stored and transported as a liquefied compressed gas. has 23,500 times greater global warming potential (GWP) than as a greenhouse gas (over a 100-year time-frame) but exists in relatively minor concentrations in the atmosphere. Its concentration in Earth's troposphere reached 12.06 parts per trillion (ppt) in February 2025, rising at 0.4 ppt/year. The increase since 1980 is driven in large part by the expanding electric power sector, in ...
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