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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. Their contribution to global warming is currently small, but can increase to the equivalent of 9-19% (CO 2 -eq. Velders et al. Velders et al.

Global 150
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US greenhouse gas emissions expected to grow until 2020

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It seems the US is still a long way from gaining a stranglehold on its increasing greenhouse gas emission output with new predictions suggesting total emissions will expand by four per cent from 2005 to 2020. According to the fifth National Communication on US climate change actions submitted by the US Department of State to the [.].

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

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Current emissions of anthropogenic greenhouse gases (GHGs) have already committed the planet to an increase in average surface temperature by the end of the century that may be above the critical threshold for tipping elements of the climate system into abrupt change with potentially irreversible and unmanageable consequences, the authors write.

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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 ). million lives lost each year due to black carbon soot.

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

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From 2005 through 2020, total US greenhouse gas (GHG) emissions are projected to rise by 4% under a “with measures” scenario (but without a cap-and-trade program and other complementary policies), from 7,109 Tg CO 2 Eq. The report projects that transportation-related CO 2 emissions will drop 1.5% to 7,416 Tg CO 2 Eq., 5,813 Tg CO 2 Eq.

Climate 199
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North American Countries Target “Super” Greenhouse Gases Through Strengthened Ozone Treaty

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If accepted by the other Montreal Protocol Parties, the proposal would deliver climate mitigation equivalent to preventing more than 100 billion tonnes of CO 2 emissions. The Federated States of Micronesia submitted a similar proposal on HFCs as well. C, says IGSD. Durwood Zaelke.

Ozone 170
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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. Last year, the Federated States of Micronesia along with other vulnerable island countries proposed an amendment to the ozone treaty to phase down the production and use of HFCs.