North American Countries Target “Super” Greenhouse Gases Through Strengthened Ozone Treaty

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The US, Canada, and Mexico have submitted a proposal to strengthen climate protection under the Montreal Protocol— the international treaty that phases out the production of a number of substances responsible for ozone depletion. The Federated States of Micronesia submitted a similar proposal on HFCs as well. HFC emissions controlled under the Kyoto Protocol would not be affected by either the North American or Micronesia proposal.

2010 163

Low-lying and other vulnerable countries calling for fast action on non-CO2 global warming pollutants

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Led by the tiny Pacific island of the Federated States of Micronesia, a growing group of low-lying islands and other vulnerable countries are calling for fast action on the approximately 50% of global warming that is caused by pollutants other than carbon dioxide (CO 2 ). Among the non-CO 2 pollutants are hydrofluorocarbons (HFCs), methane, tropospheric ozone, and black carbon soot. Reducing tropospheric ozone can improve public health as well as agricultural productivity.

2010 183
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Study: Hydrofluorocarbons Will Contribute Significantly to Global Warming by 2050

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Global ozone-depleting substances (ODSs) and HFC emissions (A), global CO 2 and HFC emissions (B), and ODS, HFC, and CO 2 global RF (C) for the period 2000–2050. These HFCs, gases used in refrigerators and air conditioners, are substitutes for ozone-depleting gases, but they are also strong greenhouse gases. Their contribution to global warming is currently small, but can increase to the equivalent of 9-19% (CO 2 -eq.

2009 150

Indo-US task force to study HFC phase-down

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The global warming potentials (GWP) of HFCs range from 140 (HFC-152a) to 11,700 (HFC-23), according to the US EPA. HFCs are chemicals are potential substitutes for ozone-depleting and climate-warming CFCs and HCFCs currently being phased out under the Montreal Protocol treaty to protect the ozone layer. India and the US have agreed to establish an Indo-US Technical Task Force on hydrofluorocarbons, or HFCs—super greenhouse gases.

2011 174

New international Climate and Clean Air Coalition to focus on reduction of short-lived climate pollutants

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Global benefits from full implementation of measures for reduction of short-lived climate pollutants in 2030 compared to the reference scenario. US Secretary of State Hillary Clinton announced the Climate and Clean Air Coalition to Reduce Short-Lived Climate Pollutants, a new global initiative to seize the opportunity of realizing concrete benefits on climate, health, food and energy resulting from reducing short-lived climate pollutants.

2012 190

Cutting Non-CO2 Pollutants Can Delay Abrupt Climate Change; The Fast Action Climate Agenda

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A “fast-action” climate agenda including reducing non-CO 2 climate change agents such as black carbon soot, tropospheric ozone, and hydrofluorocarbons (HFCs), as well as expanding bio-sequestration through biochar production, can forestall fast-approaching abrupt climate changes, according to Nobel Laureate Dr. Mario Molina (Chemistry, 1995) and co-authors in a paper published in the Proceedings of the National Academy of Sciences (PNAS). Tropospheric ozone.

US Climate Action Report to UN Projects 4% Growth in Total US GHG Emissions to 2020

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A large portion of missions growth is driven by HFCs, because demand for refrigeration and air conditioning is increasing and because HFCs are predominantly used as alternatives for ozone-depleting substances, which are being phased out under the Montreal Protocol. The Climate Action Report also used EPA’s Applied Dynamic Analysis of the Global Economy (ADAGE) model and projected that total US greenhouse gas emissions will gradually increase by about 18% between 2010 and 2050.

2010 183