Greenhouse gases

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We include updates on Carbon dioxide, Nitrous oxide, List of countries by carbon dioxide emissions per capita, Methane, Ozone, Ethylene, Carbon dioxide in Earth's atmosphere, 1,1-Difluoroethane, Carbon tetrachloride, Properties of water, Chlorofluorocarbon, Sulfur hexafluoride, Water vapor, Ethane, R-410A, 1,1,1,2-Tetrafluoroethane ... and more.

January 2025 David Kennedy was announced as the new CEO of the Science Based Targets initiative, succeeding Luiz Amaral.
2024
Nitrous oxide
Nitrous oxide, known as 'Galaxy Gas', gained significant popularity among young people, largely driven by social media platform TikTok.
July 2 2024 CEO Luiz Amaral announced his decision to step down from the Science Based Targets initiative for personal reasons.
April 2024 SBTi Board of Trustees released a statement indicating an intention to permit environmental attribute certificates (EACs) for Scope 3 emissions reduction targets, despite previous resistance. The decision was influenced by the Bezos Earth Fund and sparked internal and external controversy.
2023
Carbon-neutral fuel
A study published by the NATO Energy Security Centre of Excellence concluded that e-fuels offer a promising decarbonization pathway for military mobility across land, sea, and air domains.
November 8 2023
Nitrous oxide
UK updated law to prohibit possession of nitrous oxide, classifying it as a Class C drug under the Misuse of Drugs Act 1971.
September 2023
Nitrous oxide
The UK Government announced plans to make nitrous oxide illegal by the end of the year, with potential penalties including up to two years in prison or an unlimited fine for possession.
2022
Carbon-neutral fuel
Zero, a British company founded by former F1 engineer Paddy Lowe, began work on a demonstration production plant for synthetic fuels at Bicester Heritage near Oxford.
2022
Nitrous oxide
IPCC reported on the human perturbation of the natural nitrogen cycle, highlighting the significant role of synthetic fertilizers, manure, and fossil fuel burning in atmospheric nitrous oxide increase.
September 2022 SBTi launched the Forestry, Land and Agriculture (FLAG) guidance, allowing companies to claim emission reduction targets through 'insetting', which was a departure from the organization's previous position on emission reductions.
October 2021 SBTi developed and launched the world's first net zero standard, providing a framework for companies to set science-based net zero targets aimed at limiting global temperature rise to 1.5 °C above pre-industrial levels.
2020
Nitrous oxide
South Australia passed legislation to restrict nitrous oxide canister sales in response to rising concerns about recreational use and neurological health risks.
2019
Nitrous oxide
Human emissions of nitrous oxide had a greenhouse effect equivalent to about 3 billion tonnes of carbon dioxide, compared to 37 billion tonnes of actual carbon dioxide emissions.
May 4 2019 Successful launch of OCO-3 as part of CRS-17 mission at 06:48 UTC, mounted on the Japanese Experiment Module-Exposed Facility of the International Space Station.
May 3 2019 Rescheduled launch date, which was further delayed due to electrical issues with the recovery barge Of Course I Still Love You (OCISLY).
April 30 2019 Initial scheduled launch date for OCO-3 on a SpaceX Dragon via Falcon 9 rocket, which was delayed due to space station electrical power system problems.
October 29 2018
Greenhouse Gases Observing Satellite-2
GOSAT-2 satellite launched from the Tanegashima Space Center aboard the H-IIA rocket, developed as a joint project by JAXA, Ministry of the Environment, and the National Institute for Environmental Studies (NIES).
May 2018 OCO-3 instrument underwent Thermal Vacuum (TVAC) testing.
March 23 2018 Funding for the OCO-3 project was restored.
2017
Nitrous oxide
Nitrous oxide atmospheric concentration surpassed 330 ppb, with a growth rate of approximately 1 ppb per year.
2017
Nitrous oxide
Vice documentary 'Inside The Laughing Gas Black Market' featured journalist Matt Shea investigating nitrous oxide dealers who were stealing the gas from hospitals.
March 16 2017 OCO-3 was not included in the proposed FY2018 presidential budget.
2015 Science Based Targets initiative (SBTi) was established to help companies set emission reduction targets aligned with climate science and Paris Agreement goals.
December 22 2015 OCO-3 project authorized to proceed, with funding included in the 2016 spending bill.
August 2015
Nitrous oxide
The Council of the London Borough of Lambeth (UK) banned the use of nitrous oxide for recreational purposes, introducing on-the-spot fines up to £1,000 for offenders.
July 2 2014 OCO-2 successfully launched from Vandenberg Air Force Base using a Delta II rocket.
April 2014
Carbon-neutral fuel
By this time, Willauer's team had not yet produced fuel to the standard required by military jets.
September 2013
Carbon-neutral fuel
Heather Willauer's team successfully flew a radio-controlled model airplane using synthetic fuel made from seawater, powered by a common two-stroke internal combustion engine.
September 2012
Carbon-neutral fuel
ZSW's methane synthesis plant was scheduled to be upgraded to 10 megawatts, with completion planned for autumn.
2011
Carbon-neutral fuel
The George Olah carbon dioxide recycling plant in Grindavík, Iceland, began producing 2 million liters of methanol transportation fuel annually from flue exhaust of the Svartsengi Power Station.
2010
Carbon-neutral fuel
The Center for Solar Energy and Hydrogen Research (ZSW) and Fraunhofer Society constructed a 250 kilowatt methane synthesis plant in Germany and began its operation.
2010
Carbon-neutral fuel
A team of process chemists led by Heather Willauer of the U.S. Navy estimated that 100 megawatts of electricity could produce jet fuel, with shipboard production from nuclear power being approximately twice the petroleum fuel cost.
October 2010 Orbiting Carbon Observatory-2 project entered implementation phase.
January 1 2010 President's budget included funding for development and re-flight of an OCO replacement.

This contents of the box above is based on material from the Wikipedia articles Science Based Targets initiative, Greenhouse Gases Observing Satellite-2, Nitrous oxide, Orbiting Carbon Observatory 3 & Carbon-neutral fuel, which are released under the Creative Commons Attribution-ShareAlike 4.0 International License.